# Trigonometry

### Featured Answers

### Right Triangles

- The Pythagorean Theorem
- Special Right Triangles
- Basic Trigonometric Functions
- Solving Right Triangles
- Measuring Rotation
- Applying Trig Functions to Angles of Rotation
- Trigonometric Functions of Any Angle
- Relating Trigonometric Functions
- Radian Measure
- Applications of Radian Measure
- Circular Functions of Real Numbers
- Translating Sine and Cosine Functions
- Amplitude, Period and Frequency
- General Sinusoidal Graphs
- Graphing Tangent, Cotangent, Secant, and Cosecant
- Fundamental Identities
- Proving Identities
- Solving Trigonometric Equations
- Sum and Difference Identities
- Double Angle Identities
- Half-Angle Identities
- Products, Sums, Linear Combinations, and Applications
- Basic Inverse Trigonometric Functions
- Graphing Inverse Trigonometric Functions
- Inverse Trigonometric Properties
- Applications and Models
- The Law of Cosines
- Area of a Triangle
- The Law of Sines
- The Ambiguous Case
- General Solutions of Triangles
- Vectors
- Component Vectors
- Polar Coordinates
- Graphing Basic Polar Equations
- Converting Between Systems
- More with Polar Curves
- The Trigonometric Form of Complex Numbers
- The Product and Quotient Theorems
- De Moivre’s and the nth Root Theorems
- A tire on a 2006 Dodge Ram truck has an outside diameter of 31.125 in. Through what angle (in radians) does the tire turn while traveling 1 mi?
- How to find the values of tan, cos and sins in the quickest way?
- How do you simplify?
- How to prove #(1 + sin(A))/(cos(A)) + (cos(B))/(1-sin(B))=(2 sin(A) - 2 sin(B))/(sin(A - B) + cos(A) - cos(B))#?
- If sec^2(θ) = 5/3 find the values of cos^2(θ) tan^2(θ) + sin^2 (θ) tan^2 (θ) ?
- How do you find sin (2theta) and cos (2theta) when given tan theta = -4 and sin theta <0 ?
- Use the suggested substitution to write the expression as a trigonometric expression. Simplify your answer as much as possible. Assume 0 ≤ θ ≤ π2.?
- Use the suggested substitution to write the expression as a trigonometric expression. Please help.?
- What is the amplitude of f(x)=cos x?
- What is the value of side c?
- Use the suggested substitution to write the expression as a trigonometric expression. Simplify your answer as much as possible. Assume 0 ≤ θ ≤ π2. ?
- Use trigonometric identities to simplify the expression. ?
- Two towers of height 15m and 25m respectively stand on level ground. The angle of elevation of their tops from a point between the two towers on the line joining their feet are respectively 45° and 600 Find the distance between the two towers?
- How do I solve for the value of x in degrees given 4sin²x + 1 = -4sinx?
- #sec(-x)cos(x)# ?
- How do I solve for the value of x in degrees given #cos^2(x) - sin^2(x) =sqrt3/2#?
- How do I solve for the value of x in degrees given (2sinx - 1)(2cos²x - 1) = 0?
- How do you factor this equation in the interval [0,360)? cos^2(x)sin(x) = sin(x)
- How do I solve for the value of x in degrees given tan2x - √3 = 0?
- What are the functions #f_1, f_2#? The values of double signs are defined by the function #S(k)#.
- True or False? sin(5x) - sin(3x) = 2cos(4x)sin(x)
- I need help on this question as I've been stuck on it for quite a while.! also the range is in radians from 0 TO PI. solve for x? thank you!!
- Sin(2x+pi/6)=1/2? Solve using multiple angles?
- How do I solve for 0° ≤ x ≤ 360° given sin 2x = - sin x?
- How do you solve #sin2x =- cos2x#, for #0° <= x <= 180°#?
- Sin(A+B)=?.
- If cos(30)=1 solve for theta in the interval 0< or equal to theta < or equal to 180 ?
- Find the exact value of the expression.?
- Show that cos²π/10+cos²4π/10+cos² 6π/10+cos²9π/10=2. I am a bit confused if I make Cos²4π/10=cos²(π-6π/10) & cos²9π/10=cos²(π-π/10), it will turn negative as cos(180°-theta)=-costheta in the second quadrant. How do I go about proving the question?
- How to verify ((csc^(3)x-cscxcot^(2)x))/(cscx) =1 ?
- How to prove #(1+sinx-cosx)/(1+cosx+sinx)=tan(x/2)#?
- Can someone please help me graph #y=2cos(x)# on the interval #(-360^@ < x < 360^@)#?
- Can somebody help me solve this please? Thanks in advance!
- Prove that sin theta/1-cos theta +tan theta /1+cos theta=sec theta*cosec theta +cot theta?
- Evaluate Without using trigonometric tables 3cos 55°/7sin35°- 4(cos70°*cosec 20°)/7(tan5°*tan25°*tan45°*tan65°*tan85°)?
- A bicycle wheel with a diameter of 730 millimeters has 25 spokes evenly distributed around the rim of the wheel. What is the length of the segment of wheel rim subtended by adjacent pairs of spokes?
- If # tan (beta/2)=4tan (alpha/2)#,prove that #tan ((beta-alpha)/2)=(3sin alpha)/(5-3cos alpha)#?
- How to solve: cos(x).cos(2x).cos(3x) = 1 ?
- If we start at the point (3, 0) on the circle with equation #x^2 +#y^2 = 9#, and travel along the circle a distance 3π/2 in the negative (in other words clockwise) direction, then what will be the coordinates of the point where we stop?
- If sin s =2/3 and cos s = √5 over 3 what are the values of the remaining four trigonometric functions of s?
- In what quadrant does the terminal side of an angle of 11 radians lie? In what quadrant does the terminal side of an angle of 11◦ lie?
- Prove the following identity. ?
- Prove the following identity. ?
- How do I solve for the value of x in degrees if √2sinx-1=0?
- How do I solve for x in degrees given cos² x = cos x?
- How do I solve for x in degrees given sin 2x - 1 = 0?
- Prove that...?
- Prove that #cot (A/2)- 3cot ((3A)/2) = (4sinA)/(1+2cosA)#?
- How do you solve 3sec^(2)x-2tan^(2)x-4=0?
- What is the maximum and minimum of y=1-3sin(2x)?
- Sin A = tanA\√1 + tan^2A?
- How to simplify sinΘ cscΘ?
- An observer (O) spots a bird flying at a 35 degrees angle from a line drawn horizontal to its nest. If the distance from the observer (O) to the bird (B) is 21,000 ft., how far is the bird (B) from its nest (N)?
- Prove the following identity. ?
- How do I solve...? sinx=√3-sinx
- Given that #sin(theta) = 1/7# and that the terminal side is in quadrant I, what are cos, tan, csc, cot, and sec of theta?
- Verify the identity? cot(x) sec(x) / csc(x) = 1
- Can someone tell me how to prove that, sin 78° + cos 132° = (√5 - 1)/4, in the easiest method?
- If the point (x,#sqrt((3)/2) is on the unit circle, what is x?
- How do you verify? Tan x + cos x = sin x (sec x + cotan x)
- Let z=3(cos(15°)+isin(15°)), W= 5(cos(54°+isin(54°)). Then zw can be expressed as r(cosα°+isinβ°),where r is a real number,0≤α≤90 and 0≤β≤90.what is r+α+β?
- What's the easiest and shortest way to simplify (1-cos theta+sin theta)/(1+cos theta+sin theta), so that the answer is tan (theta/2)?
- Solve the equation please help?
- Solve the equation please?
- Sketch the graph of #y= sin theta # for #-pi <= theta <=pi#?
- Find the derivative of sin(5x-8) with respect to first principle?
- What is the range of arctan(2x/3)?
- Find approximate value #tan(44^circ)#?
- Prove that: #(sec8theta-1)/(sec4theta-1)=(tan8theta)/(tan2theta)#?
- How do I find the exact trigonometric value of tan θ = √3/4, 0 < θ < π/2; cot θ ?
- Prove that sinalpha+sinbeta÷cosalpha-cosbeta=cot beta/2?
- Cos2 A/1-tanA + sin3A/sinA-cosA = 1+ sinAcosA Please answer this?
- #(Sint-cost+1)/(sint+cost-1)=#?
- #(1+sinx-cosx)^2/(1+sinx+cosx)^2=(1-cosx)/(1+cosx)# ?
- Prove the following identity. ?
- In a triangle ABC, AD is drawn perpendicular to BC. How do I Prove that AB^2 - BD^2 = AC^2 - CD^2?
- Prove the following identity.? tanh^2(x)=1-sech^2(x)
- Simplify the expression 1 + cot²θ - cos²θ - cos²θ cot²θ ??
- How to find value of sin 37° and 24°?
- How to solve this equation: secx - cosx = sinx? Thank you!
- How do you solve these? please help. I need to find the period and I am so lost! Y= cot2 (x) Thank you!
- Find the midline of the function...?
- Explained how to get the measure of an arc length subtended by a central angle of a given its radius?
- How to sketch this trigonometry graph?
- How to sketch these graphs?
- Simplify cos x tan x + sin x cot x = ?
- How do you find the exact Trigonometric value of sec θ = -7/5, 180º < θ < 270º; sin θ ?
- Solve. A 10 meter ladder is leaning against a building. The bottom of the ladder is 5 meters from the building. How many meters high is the top of the ladder?
- If tan theta = 2, what is cot theta?
- If cot x = -0.45, find tan ?
- How do you find the value?
- How do you convert #y=2^x# to polar form?
- How do you solve the equation on the interval?
- How do you solve the equation on the interval?
- How do you draw the graph of #y=sin^2(x)# for #0 <= x < 2pi#?
- Solve 4cos2x + 10sinx - 7 = 0 on -π≤x≤π. Round to two decimals, if necessary?
- Tan20+tan40+tan60+..... Tan100=?
- How to find the solution/solutions to 20 sin (10x) - 10 = 5 ?
- 9cos^2x+5sinx=3sin^2x solve for x?
- Sinx/sinx+1=?
- Cosx=0,x=?
- Cot (4pi/15) = ?
- Simplify the following: ? #cscx/(cotx+tanx)#
- How do you prove? 1 − cos 2 x − sin x/sin2x-cosx= tan x
- How do you simplify (cos(x))/(sec(x)+tan(x))?
- What is the fundamental period of sin 2t ? And how ?
- How do you simplify (cos(x))/(sec(x)+tan(x))?
- How do you rewrite the expression as a simplified expression containing one term?
- How do you determine the values of the given function?
- How do you simplify the given expression?
- How do you simplify the following expression?
- What is the Trigonometric value for sin θ = -1/3, 180º < θ < 270º ; tan θ?
- Find the Trigonometric value of cot θ = -4/3,270º < θ < 360º; sin θ ?
- How do I solve this?
- Find exact trigonometric ratios for the angle x whose radian measure is is 35pi/4 ?
- How do you use the double angle formula to find the exact value of the given expression?
- Determine sin θ = 1/4, 0 < θ <π/2; cosθ?
- Simplify (sin x + cost)² + (sin x- cos x)²?
- Sin^2 θ + 8 sin θ cos θ = cos^2 θ What is theta?
- Your team is located at a point 58 feet east of the building. The team leader gets the best signal if he travels 34 feet from camp at a 102 degree angle. How far will your team leader be from the building when he is done travelling?
- 1/(cos(2*y)-cos(y)^2) How can I simplify this?:(
- How do you find the numerical value of one trigonometric function of x if cot x/csc x = 0.6?
- How do you simplify tan(-35 deg) using trigonometric identities?
- How do you simplify (cot(x))/(sin(x)-csc(x))?
- Solve the equation over the interval [0, 2π)?
- Verify these identities? sin^2x-tan^2x = -sin^2xtan^2x 1/(secx-tanx) = tanx+secx
- How do you prove?: #sin x("csc" x - "sin" x)= cos^2 x#
- How do you prove? Csc^2 X - 1/ 1 + csc^2 x= cot^2 x
- How do you find sin2 theta? Where theta is in the fourth quadrant.
- How would I find the cos and sin of -11pi/6?
- If #sin^( 2)( \theta )+ 3cos^( 2)( \theta )= 4# then show that #tan(\theta )= \pm ( 1)/( sqrt ( 3) )# ?
- How do you simply sec(-x)?
- (1-tanx) ^ 2 =sec^2x-2secx ?
- How do you evaluate sin 360°?
- How the expression of asin (x)+bcos (x) can be written as a single trigonometric ratio?
- If tan theta is 3/4 then find the value of Cot theta?
- How would a x=o line look like on a grid?
- How to solve arcsin(sin3)?
- What is the value of sin 330° ?
- Find the value of sin (300°) ?
- How to solve tanx + cotx = 4cos2x? Thank you
- How to solve 3sinx + 3cosx = secx + cosecx for x? Thank you!
- Tan theta + cot theta =7 find the value of tan square theta + cot square theta?
- Prove that ?
- #sin^2(45^@)+ sin^2(30^@)+ sin^2(60^@)+ sin^2(90^@)= ( - 5)/( 4)#?
- Is this an identity, if so how can it be broken down? #[1 + sin(y)] [ 1 + sin(-y)] = cos^2(y)#
- Can I get a detailed explanation as of how this is solved, not just the math work?
- We know sum of all angel in a triangle us 180 so how sin 270 etc pissible.?
- Sin(3a)/sin(a)-cos(3a)/cos(a)=?
- Cot theta - tan theta/ cot theta + tan theta?
- How do you convert #x^2-y^2+25# into polar form?
- If secA-tanA=a,show that ; secA=1/2[a+1/a]& tanA=1/2[1/a-a]?
- Given that #4<=y<=6#, find the value of y for which #2cos((2y)/3)+sqrt3=0#?
- If #cot theta = -9/2# with #theta# in quadrant 2, find #sin theta? #
- #( 1+ cot(\theta )- csc(\theta ) )( 1- tan(\theta )+ sec(\theta ) )= 2# ?
- #sin(60+x)-sin(60-x)=1# the interval #0<x<2pi# how do you solve?
- If cos theta= -4/9 with theta in quadrant 2, find sin theta?
- How do you express #f(theta)=-2sin^2(theta)-9sec^2(theta)-tan^4theta# in terms of non-exponential trigonometric functions?
- Prove that?
- A cos a= -5/13?
- How do I find the inclination θ (in radians AND degrees) of the lines passing through the points? (-√3, -1), (0, -2)
- ( sec(\theta )+ cos(\theta ) )( sec(\theta )- cos(\theta ) )= tan(^ ( 2) \theta )+ sin(^ ( 2) \theta) ?
- How can I solve this?
- Tan (a/2) equal to ?
- Find sine(theta) if tangent(theta) = 3/4 and cosine, (theta) <0?Thanks!
- HOW is cos(2x) = 0 x =pi/4 , 3pi/4 ?? Its a solution given to a problem but no explanation is given. thank you.
- Cos(^ ( 2) \theta )+ sin(^ ( 2) \theta )= sec(\theta cos(\theta)) ?
- How do you find the exact value of sin(x)=1/8 where x is in Quadrant 1?
- Use the vectors u = <2, 2>, v = <-3, 4> and w = <1, -2> to find the indicated quantity? a. 3u ∙ v b. (u ∙ 2v)w
- State De Moivre's theorem. Use it to find the cube root of unity?
- A ship’s guidance system measures that the ship is 380 m from the top of a lighthouse. The top of the lighthouse is 88 m above sea level. How far is the ship from the lighthouse to the nearest tenth of a meter?
- How do I solve 1=2cos(3X-5pi) for (0,2pi)?
- How to solve #cosx-2sinx=1# for #0<=x<=2pi#?
- Hi! If x ∈ (0, pi/2) and cosx=2/3, then (sinx+tgx)/(cosx+ctgx)= ?
- How can this be solved?
- How can this be solved?
- Find the slope of the line passing through the origin at an angle 5π/8. What angle is this in degrees?
- How can this be solved?
- Verify identity: #sin^2(x) - sin^4(x) = sin^2(-x) - sec^2(-x)# ?
- 1+cosx/sinx = cscx + cotx ?
- Given that (sin α =24/25), with α in QI, and sin(α + β) = 12/13, with α + β in QII, find sin β and cos β. ?
- Help w/ Trig Questions? #2
- [6(cos 75+isin 75)^3 Use DeMoivre’s Theorem to find the indicated power of the complex number. Write the answer in rectangular form?
- Express (3cis 60°)(2cis 75°) in polar form.?
- Simplify #sin(theta) sec (theta)# ?
- What is Cos²A - Cos²B = ?
- If the distance between the foot of a tower and the point of observation is same as the height of the tower then what will be the angle of elevation?
- How tan(π+π/4)=tan π/4 ?
- What is the polar form of z=sin(105)+icos(75)?
- If cotx= -3/2 and secx<0, find sinx and ?
- 3 sec(x) − 4 cos(x) = 0 solve for x?
- Let #theta# be an angle where: #"1)" theta in "Quadrant III"# and #"2)" sin( theta ) = - 15/17#. What Quadrant does #12theta# belong to ? No Calculators !!
- #( 1+ cot(\theta )- csc(\theta ) )( 1+tan(\theta )+ sec(\theta ) )= 2 #?
- How do I solve the following math equation?
- Did I calculate the correct answer on this question?
- Without using a calculator evaluate #sin45^o/(cos30^o +sin60^o#?
- How do I solve this? Please give me a simple explanation thank you!
- Find the exact value of tan(theta) if csc (theta) =-4/3 and the terminal side of (theta) lies in quadrant 3?
- Find the Height: Strong winds caused a tree to grow at 94° from the ground on the left. At a point 32 meters from the left side of the tree, the angle from the ground to the top of the tree is 28°. Find the height of the tree?
- How do you find the exact value for tan (-30)?
- Trigonometry bearings confuses me. I only solved right and obtuse triangles using pythagorean, sines and cosines laws?
- Can anyone solve this identity to prove if it’s true? #2cot^2(x)sin^2(x)+cos^2(x)tan^2(x)=1+cos^2(x)#
- Cosx/sinx+sinx/cosx = ?
- An angle is equal to 3π÷5 radians, what is its measure in degree?
- Let x=33/65 be the coordinate of the point p(x,y) where the terminal side of angle (theta) ( in standard position) meets the unit circle. If p is in quadrant IV what is sin(theta)?
- Express [(1-sin2x)^0.5]÷[(1+sin2x)^0.5] in terms of tanx using the half angle t formula?
- How to Find all solutions? 2csc^2 2x-3csc2x+1=0 on [0,2pi)
- How to prove #sin^2 2A(cot^2 A - tan^2 A) = 4cos2A #?
- If tanA = a/x, find the value of x/(√a2 + x2)??
- #cos(a-b)+cos(b-c)+cos(c-a)=-3/2# than prove that #cos(a-b)=cos(b-c)=cos(c-a)=-1/2# ?
- Use the equation of the circle ?...
- Sec #theta# -1#-:#sec #theta# =?
- Log(tanπ/4+ix/2)=?
- How do you find an angle between 0 and 2 pi that is coterminal with -15π/2? express answer in radians
- Can anyone explain law of sines and law of cosines?
- How do I solve secx - 2tanx = 0 over the interval (0,2pi]?
- How do i solve this Double Angle Identity?
- You have been riding the London Eye Ferris wheel for 17 minutes and 30 seconds. What is your height above the ground?
- How do I solve this Double Angle Identity?
- How do use the power reducing formulas to rewrite the expression sin^8(x) in terms of the first power of the cosine?
- How do you solve this equation?
- #(cos^2+tan^2a-1)/sin^2a=tan^2a# prove?
- How do I simplify the trigonometric function? sin4(α) − cos4(α) + cos2(α)
- 2sqr2 (cos 45 + i sin 45)to rectangular form?
- How do I solve this math problem? #(2tan((7pi) / 8))/(1-tan^2((7pi)/8))#
- #(Sin3x-2cos2x-sinx)/(cos3x+cosx)=tanx-secx#?
- How to Prove that: #sec A = (x^2 + 1)/ (x^2 - 1)#, if #csc A - cot A = 1/x# ?
- Find the exact value of #tan(\theta)# if #csc(\theta)=-4/3# and the terminal side of the #\theta# lies in the third quadrant?
- Precalcus help?! Multiple-Angle and Product-to-Sum Formulas
- If #7 cosec theta - 3 cot theta =7# then prove that #3cosec theta - 7cot theta = 3#?
- How do i solve 1=2cos(3x-5pi) for [0,2)?
- How do I solve this double angle identity?
- How do you verify this identity?
- Find all the solutions to the equation in the interval 0,2pi? Sin(x+pi/2)-cos^2x=0
- Hello..How do you calculate without the calculator: sin (99 999 999 990°)?????????
- I need help simplifying a trig expression?
- Help please?
- Find the function values of cos θ, tan θ, sec θ, csc θ and cot θ ?
- How to change z= sqr3/2 + i/2 to polar form?
- Please help?
- Find an expression for sin θ ?
- Can you solve sin(x/2)cos(2x)>0 ?
- How do I solve cos750degrees + sin(-17pi/6)?
- #sin^2(theta) + sin(theta) =1# To prove -: #cos^2(theta) +cos^4(theta) =1# ??
- Prove that 1/1-sin theta + 1/1+sin theta =2/cos^2theta ?
- Help please?
- What is (1-cotx)(1+cotx)-csc^2x?
- Cot3a+x=o Find the value of x?
- If cos(t)=-5/6 where pi < t < 3pi/2 find the values of the following trigonometric functions. Cos(2t), Sin(2t), Cos(t/2), Sin(t/2) ?
- Solve the equation on the interval [0,2pi)?
- Please help?
- How do you work this identity?
- Evaluating Trig Functions Help?
- Secx=tanx+1 ?
- Find the exact value of the trigonometric expression?
- Find all solutions of the equations on the interval [0,2pi)?
- How to solve 3cosx+3=sin^2x over the interval (0,2pi]?
- How do you simplify #cot^3x + cot^2x + cotx + 1# ?
- Sin^2theta (1-csc^2theta)?
- Show this is an identity by transforming one side to another? csc*tan-cos=sin^2/cos
- Find all solutions of the equation on the interval [0,2n)?
- How do you verify secxcscx-cosxcscx=tan?
- Prove that cosA-SinA+1 ÷ cosA+sinA-1 = cosecA+cotA using the identity cosec^A=1+cot^A?
- How do i write this in polar form? (cos(-2π/9)+isin(-2π/9))^3
- A ship leaves port at a bearing of 135 degrees, and travels a distance of 7 miles. What are the coordinates of the ship's position?
- How to simplify the given expression?
- How do you convert 3x^(2)+4y=1 and x^(2)-4y=4 to polar form?
- (Cosx÷cotx) +sinx=?
- Verify each of the trigonometric identities? Please show work so I can understand how to do them in the future!
- How do I find #theta# in #csctheta=2#, where #sintheta>0# & #costheta<0# ?
- how do i solve for the interval (0, 2 pi)?
- How do I simplify this problem using a Pythagorean identity and manipulating the problem? (tan x-cot x)/(tan x+cot x) + 2 cos^2 x I can't seem to figure this one out, so please show your work so I can understand how to do this in the future! Thanks!
- |sinx| >= |cosx| , [0,2pi] x=?
- How to solve the equation sin (x) = 0.95 in the interval from 7π/ 2 to 13π/ 2 and get the answer in radians?
- Prove that sec(2theta)=sec^2(theta) divided by (2-sec^2(theta))?
- How do you solve these? Very confused, please help! 1) If cos θ = 0.54, find sin(θ-pi/2). 2) If cot x = -0.18, find tan(x-pi/2).
- If sin A is 5/13 ,A is acute find the other functions?
- If value of cos x = 1/10 . how can i find value of cos 100x?
- #a+b+c=180^@#, #cos(b+c-a)+cos(c+a-b)+cos(a+b-c) =1+4cos(a)cos(b)cos(c)#?? As plz
- Prove that CotA/2-3cot3A/2=4sinA/1+2cosA?
- 1/tan A+cotA=cos A sin A?
- Sine120°=?
- If #sec(theta+alpha)+sec(theta-alpha)=2sec(theta)#,prove that #cos(theta)=sqrt2 cos(alpha/2)#?
- Tantheta/1-cottheta+coto/1-tantheta=1+sec.cosec??
- Simplify (1- cos theta +sin theta)/(1+ cos theta + sin theta)?
- Solve #cos^3x=cosx#?
- How to determine the Cartesian equation using parametric equations?
- What is the domain for #f(x) = sqrt sin(cosx)#?
- Solve the equation in the interval [0,360) for: ?
- How do you find the solutions of this? #3cosxsinx-sin^2x=1#
- (cot x + tan x) ^2 equals?
- #csc theta-sin theta=m# #sec theta-cos theta=n# Then Show: #(m^2n)^(2/3 )+ (mn^2)^(2/3)=1 # ?
- The terminal side of #theta# lies on the line: #y = -x# in quadrant II. What are the values of the six trigonometric functions of #\theta#?
- Domain sqrt cos(x)?
- How do I solve this Trigonometric equation ?( please show steps): 1-sinθ = (sinθ ) (cscθ -1)
- If cos theta+sin theta =root2 sin theta then sintheta-cos theta?
- Given that: sin α = 15/17, with α in QI, and sin(α + β) = 12/13, with α + β in QII, find sin β and cos β?
- How do I find all solutions for? 5 sqr 3 tan+3 = 8 sqr 3 tanx
- Consider the triangle ABC given below; use trig ratios to answer this question. what is the length of the shorter leg of triangle ABC? what is the length of the hypotenuse of triangle ABC?
- Best way to solve: cos 2 theta + 3 sin theta = 2 ?
- How to show that? A(x)=4cosx.cos2x.sin4x
- If sin𝑥 =−2/5and 𝜋<𝑥<3𝜋/2, find the values of sin(2𝑥)?
- Find the complex number w=(-√2 -i√2)^0.5 in exponential form and remain the π in your answers.?
- How do I prove ((1-tan^2 theta) / (1+tan^2 theta))=cos(2 theta)?
- I need help; how do I solve this question?
- Write the function in terms of the cofunction of a complementary angle. cos 74 degrees?
- How do I solve this questions?
- Please help prove this trigonometric identity?!!! #(sinA-cosA)/(cosecA-sinA)=tan^2A-tanA#
- Solve the equation in x for exact solutions over the interval [0, 2pi) for sin . x/2=sqrt2-sinx/2 ?
- How do you solve #\tan ^ { 2} x - 4\tan x + 1= 0#?
- How do I solve this problem?
- How do I solve the following equation? The answers that I came up with are wrong
- Solve the equation for exact solutions over the interval [0,360) for 9sin^2x-6sinx=1 ?
- How do I get tgy ?
- Find a unit vector in the plane of i+2j,j+2k perpendicular to 2i+j+2k?
- If sin A- cos A=1 then prove that sin A+ cos A =plus minus 1?
- What is sin(2*sin^-1(x))?
- How do you convert r=2+cosθ into rectangular form?
- Solve and discuss according to the real parameter "#a#" ? #sin(x)+a·sin(2x)+sin(3x)=0#
- (1+sinA))(1-sinA)=1/sec^2A prove that?
- How do I simplify this equation? I have been trying to solve it but every time i would get a wrong answer
- How do i proof #tan2x=(2tanx)/(1-tan^2x)# with moivre?
- How do you solve 2sin^3X-sin^2X-2SinX+1=0? I don't get how you get the 270.
- How do I solve 1-sinx=3cosxfor [0, 2)? Thank you!
- Cos 2aplha+7sinalpha=-3?
- (cos^(2x))/(sin^(2))+1=csc^(2)x ?
- #2sin(103^o)sin(15^o)=#?
- What is the general value of tan3x=1 ?
- #cos^4(a)-sin^2(a)=1# ?
- How do I solve for "x" in 3sec^2(x)+2+sin^2(x)-tan^2(x)+cos^2(x)=0?
- Solve the following equations on the interval 0 is less than or equal to beta and beta is less that 2 pi? 2cos^2x+cosx=0
- How do you show that one solution to 5 tan θ = 7 is 54.5 correct to 1 decimal place?
- Can you simplify # cos(x)cos(2x)cos(4x)cos(8x)cos(16x) ... cos(2^n x) # ?,
- Prove that ?
- Use de moivre's theorem to evaluate Z^8, given that Z=1+i√3?
- Sin a = 12/13, what is the value of cos a ?
- If cos theta = tan 40°tan50°.find theta?
- How do you graph #y= \sin 2\pi ( x + 2) + 4#?
- If #Cos theta +sin theta = sqrt2 sin theta# then #sin theta - cos theta#?
- Could someone please help me prove this identity? #1/(secA-1) + 1/(secA+1) = 2cotAcosecA#
- Could you pls prove the following identity? #(Sin x - cos x + 1)/( sin x+ cos x -1) = 1/ (secx - tan x)#
- If #sin theta+ cos theta =1# then # theta=#?
- If sin(θ)= -5/13 and 3π/2<0<2π, find sin(2θ), tan(2θ), and cos(2θ)?
- If sin 30°=cos (A-30°) where A-30°is an acute angle Show that A=30° How can this be proven?
- A trigonometry problem: general solution..?
- How do I simplify the trigonometric expression? cos(x)/sec(x) + tan(x)
- P(t)=2tan(t-pi/2)?
- Sinx/(1-sinx) - sinx/(sinx+1) = 2 what do?
- If sin a= 1 then what is the value of sin 2a ?
- Which point on a unit circle corresponds to -3.14/6?
- Find csc theta and cot theta if tan theta=-4/3 and sin theta > 0?
- Simplify (Sin^2((pi/2)-theta))/sec(-theta))?
- If #tan theta + sin theta=m#, #tan theta-sin theta=n# .prove that #m^2-n^2=4sqrt(mn)#?
- Find the solutions for the following equations in the interval [0.2π). Solve algebraically and show all work?
- If cos(θ)= -4/5 and π<x<3π/2, find sin(x/2), tan(x/2), and cos(x/2)?
- #cos ^2theta + 2 sin^2 theta + 3 sin^2 theta + 4 sin^2 theta +.. .."upto 200 terms "= 10025# then #sin theta - cos theta=# ?
- How do you verify these identities?
- 2 sin 2B - 2 cot B = -2 cot B cos 2B ?
- Use the image below to answer the following question. Find the value of sin x° and cos y°. What relationship do the ratios of sin x° and cos y° share?
- A 12ft ramp rests against the edge of the floor at the back door of a truck. To make it stable 2.5 ft, of the ramp extends beyond the edge of the floor, which is 3.5 ft above the level ground. Find the cosine and tangent That makes with the ground?
- John is making an elliptical shaped table from a rectangular piece of wood. He puts 2 nails in the wood 16 inches apart and then attaches 20 inches of string between the nails. Using a pencil, he pulls the string tight and thus traces out the set of...?
- How does 1/sin2x = 1/2sinxcosx ?
- How would you go about solving for x if 2sin3x=0 ?
- Find (x,y) on the unit circle, given that the x-coordinate of P is -1/2 and P is in Quadrant III?
- The function f is defined by f (# x) = 30 sin 3x cos 3x, 0 <= #x <=π3 .Solve f (x) = 0, giving your answers in terms of pi?
- If #sin(x)cos(x) = 1/4#, the what is #sin^4(x) + cos^4(x) =# ?
- How do you simplify sec^2θ(1-sin^2θ)?
- Two countries are halfway around the world from each other (by E to W) and lie on the 17 degree north latitude. Earth's radius is 3790 miles at that latitude. Would flying west to the other country be shorter, or would flying directly north be shorter?
- How do you prove "2cos^2(x)=1+cos(2x)"?
- How to verify? (sin(x)•cos(x))/(1-2sin^2 x)=1/(cot(x)-tan(x))
- If sin x = -12/13 and tan x is positive, find the values of cos x and tan x ?
- How do I solve the problem given here? A kite is 120 ft high when 650 ft of string was out. What angle does the kite make with the ground, assuming that the string is directly tethered to the ground?
- how do i prove #(sin3x+sinx)/(cos3x+cosx)=tan2x#?
- Sin theta=4/5 is not first quadrant,find the value of cos theta ?
- Identify the expression that completes the equation so that it is an identity. cos x/1+sin x = ?
- If #CosA=d/a# then #(cosA+sinA)/(cosA-sinA)=# ?
- #(1+cos theta + sin theta)/(1+ cos theta - sin theta) =(1+ sin theta)/ cos theta #.prove this??
- Find the angles of cos x=tan x?
- Super confused need help asap. Am I right or am I losing my mind?
- How do you do to get #sinx=2sin(x/2)cos(x/2) #and #cosx=2cos^2(x/2)−1#?
- Csc^2x-cot^2x Solve using Pythagorean identity please show steps ?
- How do I simplify #(1+tan^2x+sec^2xcot^2x)/(csc^2x+cot^2xcsc^2x)#?
- How do I verify this identity?
- How do you find the values of the indicated functions?
- How would I solve the following equation in the interval [0,2#pi#): #3 tan theta + sec^2 theta = 2# ?
- How do you solve for x in this trig function?
- #x^3 + sin x = 1# for #(0, 2pi)# does it has any roots?
- Find the angles in radians?
- How to use de moivre's theorem to express #(sin 6theta)/sin theta# as a polynomial in #cos theta#?
- Find all the solutions in the interval [0,2pi) sin 3x-sin x=0 ?
- Right angle triangle whose opposite is 12cm and adjacent is 2.5cm find hypotenuse?
- If sinΦ=(Sinx+Siny)/1+Cosx.Cosy then prove that CosΦ=Cosx.Cosy/(1+Cosx.Cosy) answer of this question??
- How to find the exact value of cos(2tan^-1(9/40))?
- how to simplify tan 2x?
- Prove that #tan50°=tan40°+2tan10°#?
- How do I solve for tan (theta) and theta?
- How do I simplify # (2cot(θ)+cosec(θ))^2 -cosec^2(θ) (4cos(θ) +5cos^2(θ)) # ?
- Tanx/secx + cotx/cscx = sinx+cscx how do I verify this?
- How do I verify #sin(npi + theta) = (-1)^n(sintheta), n# is an integer?
- If x= m sin theta and y= n sin theta then find value of n^2x^2 + m^2y^2?
- How do you evaluate #2- 3\sin x = 0#?
- A #DeltaABC# is right angled at #B#. Find the value of?
- For #DeltaABC# show that ?
- Can anyone evaluate the sum? cos 2π/7 + cos 4π/7 + cos 6π/7
- What is the value #sin^2(30°) × sin ^2(45°) + 4 tan ^2(60°) + 1/2 TAN ^2(45°) -2 cos ^2(90°)#?
- If sin A= 3/5 and cos B= 15/17 where A is an obtuse angle and B an acute angle find the exact value of sin(A+B)?
- Show that Cos²tita is equal to (cos²tita+1)/2?
- Simplify Cosx-cos5x+cos9x-cos13x?
- Prove that tan∅/1-tan∅-cot∅/1-cot∅=cos∅+sin∅/cos∅-sin∅?
- Would you please verify this indentity? Thank you in advance. cos^4x=(2cos2x+cos^2(2x)+1)/4
- 1+cos240˚ divide by 1+cos240˚?
- 1)Without using tables,find the value of tan 135 degrees? 2) 1+cos240°÷1+cos240°
- The picture has the question. the degree should be converted to radians and plug it into calculator to apply sinreg. how can I covert those degrees to radians?
- If 0<theta>360,find all possible values of theta such that cos theta =-0.8586?
- A building 64 ft high casts a 288 ft shadow Sarah casts a 18 ft shadow. The triangle formed by the building and its shadow is similar to the triangle formed by Sarah and her shadow. how tall is Sarah ?
- How to solve sin2x × cos3x=0 ? Trigonometric equation
- What are the 6 trig functions for theta-150?
- 4. If the cosecant of a fourth quadrant angle is –π/e, what is its cosine? Thanks
- If 2 sin A =√3 find cos A and Tan A?
- Prove the following identities?
- What is the prove for #sin(alpha+beta)=sin alpha cos beta+sin beta cos alpha#?
- Prove the following identies?
- Help with math?! tan and cosine, show work please
- Write on the trigonometric form the following complex number: -3(Cos#pi#/4 + isin#pi#/4) ?
- How do you prove that #(sin(x)) ^sqrt2 = tan(x)#?
- Can you prove? Cosec^4(1+cos^2x)(1-cos^2x)-2cot^2x=1
- How do you prove 1/2(cotx-tanx)=cot2x?
- What is the value of x if :- tan×3×x = sin45°×cos45° +sin30°?
- #(sec a+1)=tana(2+√3) # 0<=a<=2π??
- 2 sin7ϴ cos3ϴ is equal to?
- How do I solve over the interval of 0,360? Cos^2 x= sin^2x+1
- A belt 12.25 meters long passes around a 3.5 cm diameter pulley while belt makes three complete revolutions in a minute. How many radian does the wheel turn in 5 seconds?
- How do I verify tanx/secx+cotx/cscx=sinx+cosx?
- If #sin theta = -4/5# and #theta# is in the fourth quadrant, find #cos theta#?
- How to solve 4sin^2(4theta)=1 in the interval [0, 2pi)?
- If tan(t) = 2/3, find tan(-t). How do I evaluate this?
- Find the area of a triangle given that C=110 degrees, a=6, and b=10?
- What is the angular velocity of the second hand of a clock, in radians per second?
- A trigonometry problem please?
- How to simplify #sin^2x/(cos^2+3cosx+2)=(1-cosx)/(2+cosx)#?
- What is the domain of #sinx = -1/2 #?
- What angle does the minute hand turn through between 8:10 and 8:30?
- Sinx - (1/sinx) = cos/tan how?
- How do I simplify (x)(secx)(cscx) ? Thanks in advance!
- What is the exact value of #sec(tan^-1(- 5/4))#?
- How do you find cos theta?
- What is the formula of sec(a)-sec(b)? Please tell
- From a balloon 3km high, the angles of depression to two buildings in line on the same side of the balloon are 82 degrees and 12 degrees. How far apart are the buildings?
- If you're given the sine of an angle and asked to find the cosine of the same angle, what could you do?
- How do you convert 36 degrees to radians?
- Tan (cos-1 (-1)?
- Sin6A+cos6A = 1_ 3 sin2A cos2A ?
- How do you solve #3\sin ^ { 2} x + 4\cos x - 4= 0#?
- If #4secA=5# then prove that #(sinA - 2cosA)/(tanA-cotA)=60/11#?
- How to put this polar equation in rectangular format? r=(1)/(-8cos theta-3sin theta)
- # 8cos^4theta =3+4cos2theta+cos4theta # ?
- How do you verify 1-2csc/cot=tan-2sec?
- Prove that #1- cos(x) = 2sin^2(x/2)#?
- Find the value of cos 36?
- How do you simplify this?
- How to use the product-to-sum formula to write the product as a sum or difference? 4 cos pi/3 sin 5pi/6
- How to solve for #x# in #sin(2x-pi/3)=1/2#?
- By using componendo and dividendo rule if tan(a+b) =3tana then Show that Sin(2a+2b)+sin2a=2sin2b?
- How do I verify this?
- A gondola on an amusement park ride spins at a speed of 13revolutions per minute. If the gondola is 28 feet from the ride's center, what is the linear speed of the gondola in miles per hour?
- How do you find the period of #2sin(2x) +1#?
- Why is the arctan of equal to pi/6? My teacher says it's pi/6 but is it really that or is it pi/3? Maybe he messed up when providing the answer?
- How do I verify with a cube?
- What is an angle between 0 and 2π that is coterminal with −3π/4 ?
- How to verify (1-tan^2)/(1+tan^2)=1-2sin^2X?
- How do I simplify?
- Find the radius and the center of the circular section of the sphere |r| = 26 cut off by the plane r ·(2i+6j+3k) = 70 ?
- The diameter of each wheel of a bicycle is 27 inches. If you are traveling at a speed of 10 miles per hour on this bicycle, through how many revolutions per minute are the wheels turning?
- Cos(2sin^-1 x -pi/2) ?
- How do you solve #sin(9theta) = sin(theta)#?
- Perform the operation and leave the result in trigonometric form{3(cosπ/3+isinπ/3)4(cosπ/6+isinπ/6)} ?
- #1-cos^2 theta = 0# find theta using reference angles?
- How to turn sin(2θ) sin(7θ) as a sum?
- How can i find the Domain?
- |TRIGONOMETRIC FUNCTIONS| What's the perimeter and area of the hatched region? Thank you!
- The no.of values of x for which square of cosx is equal to one and square of x is less than equal to four is what ?
- Tan x+secx=2cosx ?
- What is the value of y when sin y =o.64?
- If #cos(t)=4/7# and #t# is in the 4th quadrant, find #sin(t)#?
- Tan^2xsin^2x=tan^2x-sin^2x?
- How do you solve this?
- Exact pi value of -1 - 3#sintheta#=-4#sqrt2# - 1 + #sintheta# in the interval 0 #<=# #theta# #<# 360?
- Is 1-tan^2x/sec^2x=cos^2x-(1/csc^2x) an identity?
- Which of the following equations are identities? check all that apply tan x=sin x/cos x tan x= 1/sec x csc x=1/sin x sec x= 1/csc x
- How do you prove? (cos^2x+tan^2x-1)/sin^2x=tan^2x
- How do you solve sin theta = 0.40? Thank you!!
- How do you evaluate #\cot ^ { - 1} ( - 0.031)#?
- If #4 sin(x) - 1 = -5#, then, what is x?
- Q.sec330 degree solution with full steps and explanation ?
- Can you prove that sin3x-sinx=2cos2xsinx?
- From the top of the tower, 60m high the angle of depression of the top and bottom of a vertical lamp-post are observed to be 30degree and 60degree respectively.Find: 1. the horizontal distance between the tower and lamp post 2.the height of lamp post?
- If #sin theta = 1/4, then cos(90degrees - theta) =?
- What is the value of #cos^-1 =-sqrt2#?
- Which one is the correct one??
- If cos x = 8 and tan x = 3√7. Find CSC x?
- Sin x/ CSC x - cot x?
- Why tan30 equals to infinity?
- If #cos(x)= 1/6#; #sin(x) = sqrt35/6#, #cot(x)# ?
- 1/sec x + 1 ?
- Simplify sec x cot x - sin x?
- Arcsin(-x)=-arcsin(x) how do you prove that arcsin(-x)=-arcsin(x) ?
- If #tan^4a-tan^2a=1# then #tan^2a-cot^2a-1=?#
- If cos=0.9, what is (cosθ+π)?
- Trig Help Please?
- How to solve 1+cos2X/cotx?
- If #tan^4a -tan^2a=1#, then what is #cot^4+cot^2a#?
- Prove that cot A-1/2-sec^2 A =cot A/1+tan A ?
- If sin(θ) = − 5/6 with θ in Quadrant III, what is cos(θ)?
- How is: 2sin2x=2cosx ?
- Show that #4sinQcosQ=(sin4Q)/(cos2Q)?# Thanks
- 1.Prove that -(1+cos A/sin A)square=1+cos A/1- cos A?
- How do I draw the right triangle ABC whose sides have the following values given below, and then find the six trigonometric functions of angle A? a = 2, b= √5, c = 3
- Prove that; #(cosA-sinA+1)/(cosA+sinA-1)=cscA+cotA#?
- Show that #Sin3theta= 3sin theta–4sin³theta# ?
- What is this?
- Express the equation #tan(theta+45)-2tan(theta-45)=4# as a quadratic equation in #tan theta#. Hence solve the equation. Can someone please solve this?
- Please help me with my test?
- for x ≠ kπ, k∈Z show that: sin8x / 8sinx = cosx.cos2x.cos4x deduce the value of E = cosπ / 7.cos2π / 7.cos4π / 7 ?
- How to simplify cos x cos y(tan x + tan y)?
- #2sin3alphacosalpha#?
- Angle θ is in standard position. If (8, -15) is on the terminal ray of angle θ, what are the values of the trigonometric functions for the following? sin(θ) = cos(θ) = tan(θ) = csc(θ) = sec(θ) = cot(θ) =
- How do you find he exact value of sin(pi/12)cos(pi/4)+cos(pi/12)sin(pi/4) using the sum and difference identities?
- Degree to radians? -225
- Verify (sinx/1-cosx)-(sinx/1+cosx)=2cscx???
- If given that (1+cosA)(1+cosB)(1+cosC)=(1-cosA)(1-cosB)(1-cosc) then prove that (1+cosA)(1+cosB)(1+cosC)=sinA.SinB.sinC ?
- 5sin^2 x-7sinxcosx+16cos^2 x=4 What are the general solutions of this trignometric equation? Thanks
- If sin theta1 + sin theta2 + sin theta3=3 then write the value of cos theta1+ cos theta2 + cos theta 3?
- #(tan theta+sec theta - 1)/ (tan theta -sec theta + 1)=(1 + sin theta) / cos theta # ?
- How do you solve this?
- If 1-sin a = 2/5, then what is 1+cos a ?
- Domain sqrt sin (x) ?
- Solve the following. (Hint: Ans is x=0 & x=0.5ln2) but how?
- How do you to convert r = sin(theta) -cos(theta) to rectangular form?
- Cos theta /1-sin theta -[cos theta /1+sin theta]=2. Find the value of theta?
- Sinx+cosx*cotx=cscx?
- What is #2cos^2theta - 3sintheta = 0# over the interval #[0, 360*]#?
- How do you solve #\tan ( 45^ { \circ } ) = \frac { x } { 6} #?
- Find the value of -tan 270?
- How we can write that COT(π/4) RADIAN?
- Given that tan Q=3, where Q is an acute angle, find the exact values of sin2Q. ?
- 1+tan^2(β)?
- How to find sec(145)?
- How to find tan(-210)?
- How do you find all x in the interval [0, 2pi] that satisfy the equation 4cos^(2)x-sin^(2)2x+5sin^(2)x=4 ?? please help!
- In a triangle ABC, if #a/b=2/sqrt3# , find the angles A and B ?
- How will you ? #sqrt ((1-cos theta)/(1+cos theta))=sin theta/(1+cos theta)#?
- How do you prove 1-tan^2x/1+tan^2x=cos^2x-sin^2x?
- Prove the Following?
- If sinx+sin^2x=1 then prove that cos^12x+3cos^10x+3cos^8x+cos^6x-1=0 ?
- Which is greater tan 1 or tan^-1(1)?
- How do you find #tan theta#, given #cos theta = sqrt3 / 2# and #0° < theta < 90°#?
- How can i find the Domain of this f(x)?
- How to prove that #1/(1+cos(x))=csc(x)(csc(x)-cot(x))# ?
- How to prove Cosx-sinx/cosx+sinx=sec2x-tan2x?
- Show that: cos ( 2alpha + beta) - cos (2alpha- beta) = - 4sinalpha x cos alpha x sin beta How to show that??
- Find the value of each of the trigonometric functions of theta? sec theta=11, tan theta >0
- Find the reference angle for 8 pi divided by 5?
- A 50-foot wire runs from the roof of a building to the top of a 10-foot pole 14 feet across the street. How much taller would the pole have to be if the street were 16 feet wider and the wire remained the same length?
- Solving Trigonomic Equations. How do I go about solving 4sin^4x + 3sin^2x -1 =0?
- How do I solve this equation using the "added corner" method? ?
- Why root sec^2 x"is abs value of sec x??
- How do you simplify sec^2 (pi/2 - X)-1? Please show me the easiest way to do this.
- In Exercise 9, what would the distance across the top of the worm thread have to be to make d equal to 0 inches?
- Use sum difference formula to compute the exact value of tan 75? Use the half angle forumula to compute the exact value of sin pi/12?
- Prove identity #(tanx - secx)/ (1 - cscx) = 1/ (1 + cosx )#?
- How do I find the intervals of 2sin^2(4x)-1=0?
- If csc(theta) is 17/8, what is cos(theta)?
- How do you solve #\sin (3x-27)=\cos (5x+5)#?
- If sin theta =5/13 and theta + alpha =90° then cos theta = ?
- How do you solve this? #sin2x-sinx-2cosx+1= 0#
- How to solve secx-tanxsinx-1/secx? from the 1st step to the last step
- Sierra walks 26 cubits due south, then 70 cubits due east and finally 50 cubits due north. How far is Sierra from her starting point?
- How to prove this identity?
- How do you sove for all values of x: sin2x-tanx= tanx cos2x?
- Cos inverse 1/x ?
- How do I get sin2x ?
- What are the solutions to the equation sin(theta) = 0.7422 in the interval [0, 2(pi))?
- Sin 20 Cos 70 How to evaluate?
- How to solve?
- How to solve?
- Findthedirection cosine and direction angle ofa=(1,2,3)?
- Can I simplify sec^2/csc^2 ? If so, how would I?
- If #A+B=315^0#, then what is the value of #(1-tanA)(1-tanB)#?
- If I do it this way cosx = 1/tanx cosx tanx =1 sinx =1 x = 90° I only have 1 answer. What mistake did I make and how do I avoid making this mistake ? Thanks for your time.
- How do you get x from cos(85=8/x?
- What is tan3pi/4?
- How do you prove 1+cos^2x/sin^2x = 2csx^2x-1?
- Beginning trig.., what is cot in right triangle?
- What rule is used when changing cot(x)cos(x) + sin(x) into csc(x)?
- Sketch the graph of the following Function (two periods). Clearly label all relevant points?
- Beginning trig... find csc?
- √1+sin x/1-sin x= tan(π/4+x/2)? Prove
- How do I solve for the variables of the figures below here?
- If #tantheta+cottheta=4 ÷ √3# then what is the value of #theta# given that #0≤theta≤2π# ?
- Prove?: tan^2 A÷1+tan^2 A+cot^2 A÷1+cot^2 A=1
- In a triangle abc angle A = 60 degree and b/c = root 3 + 1 by 2 then Angle B minus angle C has the value equal to¿?
- Why sin inverse(x)=cosec inverse(1/x) Can we r write sin inverse (x) =1/sin(x)=cosec(x)?
- #sin^4x# expand?
- If x=30degree ,verify that #tan2x=2tanx/(1-tan^2x)#?
- Find the exact value?
- Solve the following equation?
- Sin^4 x+sin^2 x=1 then, find the value of cot^4 x-cot^2x=?
- #f(x): cosx+ sinx + 2# bring into # f(x)= p cos (x-Φ) + q # How to bring it into the second form?
- Verify #cscx/(cscx-cotx)=csc^2x+cscx*cotx# ?
- What is the maximum value of sin(x)+cos(x)?
- Solve ? 1/1-2sin^2(x) >/ 2 for 0/<x</2 pi
- Find the component form and magnitude of the vector v with the given initial and terminal points. Then find a unit vector in the direction of v? Initial Point Terminal Point (2, 8, 0) (4, 1, 2) v = ||v|| = v / ||v|| =
- How do you solve #sin^2x+sinx-2=0#?
- How to get x in : -5sin4x + 40cos4x?
- Find the direction angles of the vector. (Round your answers to three decimal places.) u = −6i + 3j + 7k ? α = _____rad β =_____ rad γ = _____ rad
- If 180 degrees< theta < 270 degree, cot theta = 4/3, then sin theta/2 = ?
- As angle x increases from pi/2 to pi radians what is the value of sin x?
- Cot^2(x) - cos^2(x) Simplify?
- Find the direction angles of the vector. (Round your answers to one decimal place.) u =6, 3, −8? α = ° β = ° γ = °
- Cos 6x - cos 4x= - sinx How to solve this?
- How do i verify square root of secx-1/secx+1 = absolute value of secx-1/tanx?
- How to solve for 2cos^(2)(2x)=1 ?
- How do you find all values of x in the interval [0, 2π] that satisfy the inequality? (Enter your answer using interval notation.) 9 sin (x) <= 9/2
- Show that the area of a triangle with sides of length a and b and with included angle θ is A = 1/2ab sin(θ) ?
- Prove the following identity?
- How do I evaluate 'sin' raised to power 2 x when x=0.0054?
- Find the length of a circular arc subtended by an angle of #π/6# rad, if the radius of the circle is 48 cm?
- If sin(x) = 1/3 and sec(y) = 13/12 , where x and y lie between 0 and π/2, evaluate the expression using trigonometric identities? (Enter an exact answer.) cos(x − y)
- Prove the identity? #sin(3θ) + sin(θ) = 2 sin(2θ) cos(θ)#
- If #sin(x) = 1/3# and #sec(y) = 5/4#, where #x# and #y# lie between #0# and #pi/2#, evaluate the expression using trigonometric identities? (Enter an exact answer.) #cos(2y)#
- What is the exact value of the bottom length (ie. x)?
- Tan (4x+ 1/4pi) = tan (2x + 1/2pi) How to solve this?
- Cosec 52/ sec 38 + 2 /√3*tan38*tan60*tan52-3( sin^2 32 + sin^2 58) ?
- Show that for #ABC#? cosB.cosC-sinB.sinC+cosA=0
- Show that sinB.cosC+sinC.cosB=sinA ?
- Cot theta + tan theta=?
- Please help me how can I draw the right triangle ABC whose sides have the following values given below, and also find the six trigonometric functions of each triangle’s angle A? a = 9, b = 40, c = 41
- Prove # (1+sinβ-cosβ)/(1+sinβ+cosβ) + (1+sinβ+cosβ)/(1+sinβ-cosβ) = 2cosecβ#?
- If Sina+Cosa=1 Then sin2a+cos2a=?
- Use demoiveres theoreum to show that ;? #tan 4theta= (4tan theta — 4tan³theta)/ (1 — 6tan²theta+tan^4theta)#
- Prove that #((tan a +sec a +1 )( tan a -sec a +1 )) / tana =2 #?
- Find the greatest and least values of #(sin^-1x)^2 + (cos^-1x)^2#?
- In #DeltaAB# prove that, #a^3sin(B - C) + b^3sin(C - A) + c^3sin(A - B) = 0# ??
- Verify cos^3•sin^2=cos^3-cos^5?
- From a ship at sea, the angles of elevation of the top and bottom of a vertical lighthouse standing on the edge of a vertical cliff are 31 and 26 , respectively. If the lighthouse is 25 meters high, calculate the height of the cliff?
- How to solve this identity? Thank you!
- Let Tan ø (theta)= 8/15 such that 0<ø<pi/2. Find sin ø/2, cos ø/2, and tan ø/2?
- If #sin theta +sin^2theta=1# and #acos^12theta+bcos^10theta+c cos^8theta+dcos^6theta-1=0#, then #(b+c)/(a+d)=#?
- If Cos theta= 4/5, where 0<theta<pie/2, then sin 2 theta=?cos
- Find the solution of ;? Cos²x— Sin²x =0.5
- Sin (x)= 5/6.find cos (x)?
- Given that √3 cosθ - 3 sinθ≡ R cos(θ+α) calculate the value of R and α, where R>0?
- Help in trignometry! (?)
- Find the general solution of sec x =minusroot2 ?
- If tan^2 theata= 3, where 90<theata<270, then the values of theata are?
- Is this equation possible?
- Prove that #(cosecA+cotA)^2= (secA+1)/(secA-1)#?
- Show that {sec^(4)x-1}/{tan^(2)x}={tan^(2)x+2}?
- Prove the identity #cos4θ - 4cos2θ≡ 8sin^4θ - 3# could really use some help on this?
- If #tan theta=1#,then the value of #(8sin theta+5 cos theta)/(sin^3 theta-2cos^3 theta+7 cos theta)#=? Options are:----a)2, b)#2 1/2#, c)3, d)#4/3#
- If x=a sec theta + b tan theta and y= a tan theta + b sec theta, prove that (x^2-y^2)=(a^2-b^2). How to prove?
- How to simplify this equation and thanks.? #(cos^2x+sin^4x)/(sin^2x+cos^4x)#
- How can i solve this equation : #tan(45+x)-3tan x=2# ?
- If # sintheta =cos4theta# then #tan5theta# is??
- Cos^x-cos2x=1 how i can solve it?
- Convert 12 revolutions to radians?
- Solve tan^2x-cos^2x=(secx-sinx)^2 for all values of x?
- (cot x)/(1+csc x)-(cos x)/(1-csc x)=?
- Given the point (-3,4), how do you find sin, cos, and tan theta?
- Find the value of alpha and theta?
- Sinx-cosx=2/5 sin2x=?
- What quadrant does θ lie? cos θ>0 and sin θ<0.
- If cosx=-4/5 and 90° < X <180° How to find the exact values of sin2x,cos2x,and tan2x?
- How can i find the domain of this?
- How do i do (2sinθ + √ 3)(sinθ-1)=0?
- Verify the identity ? #cosx(cos^2x+sin^2x)=cosx#
- 7 sin^2x+3 cos^2x=4?
- Can someone please explain that how we got#1 <=sin^(-1)cos^(-1)sin^(-1)tan^(-1)x<=(pi)/2# from #[sin^(-1)cos^(-1)sin^(-1)tan^(-1)x]=1# ?, where [.] denotes the greatest integer function.
- How do I verify this identity?
- Show that sin θ + i cos θ = cis π 2 − θ .?
- Domain restrictions on cotangent?
- Could someone pls tell me why did they substitute t = 3 hrs instead of t = 1500 hrs in part c)?
- What is the value of tan(-240degree) ?
- Solve each equation on the interval [0,2pi)? 2 sin x cos x= -1
- If #sinA*sin(B-c)=sinC*sin(A-B)# then show that # a^2,b^2,c^2# are in AP.?
- Sin2theta+cos2theta=p than p cannot be?
- How to solve sin(x)+cos(x)=-1?
- How do I verify Cosx/1-sinx = 1+sinx/cosx ?
- Use a half angle formula to find 1. Cos75 & 2. Sin 165. ?
- FInd exact solution? [0,2PI] A) sin2x-sinx=0 B) 4sinxcosx=1
- what is 1+tan theta/1+cot theta ?
- #a/sin105° = sqrt6/sin60° # Value of a is √3+1 how ??
- #sec(A)+csc(A)=2#, then #cos(A)=#?
- If #(cosA+2cosC)/(cosA+2cosB)=(sinB)/sinC# then show that the triangle is either isosceles or right angled triangle. I got #cosA+cosB+cosC=1# what to do after this?
- Given cosθ = 1/6, find cos (π- θ) ?
- How do you solve this trigonometric equation?
- Help me to solve it?
- Simplifying Trig Expressions help #2. Can someone please help me?
- Find the cube root of complex number ? Z=-√2 + i√2
- #(c ^2 - a ^2 + b ^2 )tan A = (a ^2 - b ^2+ c ^2)tan B = (b ^2 - c ^2 + a ^2)tan C# ?
- Show the following equality is true? (Hint: get common denominators)
- SinBtanB+sin(90°− B) how do I simplify this trig expression?
- Using the right triangle shown opposite, show that the exact value of cos2x is 7/25. Triangle: drawn in the second quadrant with X in the bottom right corner. Opposite: 3 Adjacent: 4 ?
- Solve cos2x+3sinx=2 for values of x from 0° to 360°?
- use DeMoivre's theorem to simplify ?
- Solve sin^-1(1/x)=2tan^-1(1/7)+cos^-1(3/5) ?
- How can I prove this identity: #(sinx-1)(tanx+secx)= -cosx#?
- How would I do this on a calculator?: Sin75
- How do you prove 1-sin(-x)=cos(-x)/sec(-x)+tan(-x)?
- How do you prove #\frac { \cos A + \sin A } { \cos A - \sin A } = \tan ( 45^ { \circ } + A )#?
- Sin0=3/5 cos0=?
- How do you evaluate?
- How do you solve #\sin \frac { \pi } { 2} - A = \cos \frac { \pi } { 2} - 38.75\cos 87.27^ @#?
- If you divide # cos^2 x / cos x # , does it become # cos x # ?
- If #r_1=r_2+r_3+r# prove that the triangle is right angled.?
- An arc of lenght x cm subtends a central angle of 3/2 radians in a circle of radius 12 cm, what is x ?
- Could someone please tell me how did we get these values for bearings?
- Show that #(a^2sin(B-C))/(sinB+sinC)+(b^2sin(C-A))/(sinC+sinA)+(c^2sin(A-B))/(sinA+sinB)=0#?
- If #1/(a+c)+1/(b+c)=3/(a+b+c)# then find angle C.?
- Show that #(b^2-c^2)*cotA+(c^2-a^2)*cotB+(a^2-b^2)*cotC=0#?
- Tan^2x-1/cot^2x-1=1-sec^2x how do I prove this?
- Prove this identity?
- How do you solve “tan^θ+ atanθ+1” How mach is a?
- How do you solve #(cos(pi/2+x))/(1+cot(pi/2+x))+cos(2pi-x)/(1+tan(-x))#?
- Sin²2x-2sinxcosx-12=0, for 0°=<x<=360° How to solve that?
- Cos27°+cos93°+cos143°=0??
- How do you find #(cos5x+cos4x)/(sin3x+sin2x)#, if #14x=3pi#?
- How to find the exact value of sin [ (π/2) - cos^-1 (2/3)]?
- Find all values of x in the interval [0, 2π] that satisfy the equation. (Enter your answers as a comma-separated list.)? 4 + 2 cos(2x) = 6 cos(x)
- If sin x- cos x = 1/2, then sin^4 x+ cos^4 x =?
- A spring attached to a ceiling is pulled down #20# cm. After #3# seconds, wherein it completes 6 full periods, the amplitude is #15# cm. Find a sinusoidal function modelling it's position #t# seconds after released?
- How do you simplify Sin^2xcos^2x-cos^2x ? -Thanks
- If y=cosx+3 how do i find f(π/4)?
- How do you convert #x= 15# to polar form?
- How do I solve the following?
- If #cos(2x)+sqrt(2)cos(x)=1# how do you solve for x?
- Find all values of x in the interval [0, 2π] that satisfy the equation. (Enter your answers as a comma-separated list.)? 16 cos(x) + 8 sin(2x) = 0
- How do I find all the exact solutions of the equation in the interval [0,2pi]: sin(3x) = sin(x)?
- (2-√3 secx)(secx+3)=0? [180, 360]
- Graph of #y=2-sin(x)#?
- 2sin^2x=1-(cos^2x+sin^2x)? how do I solve
- Express 3 cos 𝜃 − 4 sin 𝜃 in the form 𝑟𝑐𝑜𝑠 (𝜃 + 𝛼), with positive 𝑟. Hence solve the equation 3 cos 𝜃 − 4 sin 𝜃 = −1.5 where 0° ≤ 𝜃 ≤ 360°. Find the maximum and minimum values of 3 cos 𝜃 − 4 sin𝜃 ?
- If cos(x)=-4/5 and 180<x<270 (3 qdrt), how do we find Cos(x/2) and sin(x/2)? Thanks!!
- How do you prove cscx*cosx^2x+sinx=cscx?
- Simplify 2cosx/sin2x?
- #6(tanx)^2-4(sinx)^2=1#. Solve x?
- Find all values of x in the interval [0, 2π] that satisfy the equation. (Enter your answers as a comma-separated list.)? 18 cos(x) − 9 = 0
- How do you prove #\sin ( \frac { \pi } { 2} - x ) \cot ( \frac { \pi } { 2} + x ) = - \sin x#?
- How to use the addition formula to simplify?
- Prove that; 1-cos(theta)/sin(theta)=1/cosec(theta)+cot(theta)?
- How to simply 1-sin^2x/1-cos^2x?
- how do you solve sin 2x + cos x = 0 ?
- How do I prove this without crossing the equals sign?
- How to solve 2+tan^2x/sec^2x-1 ?
- How do i find angle #/_C#, and sides b and c ? With angle #/_A# = 50°, angle #/_B#= 67°, c=14
- If #sinx+sin^(2)x+sin^3x=1#, then what is the correct option for #cos^6x-4cos^4x+8cos^2x#?
- The number of solution of the equation cosx cos2x cos3x=1/4?
- What is a polar coordinate system? And why are they used?
- How do I solve over the intervals of (0,360)? 2tan^2 x sinx- tan^2 x=0
- Can somebody solve it for me?
- Sin(2x)=cos(x-pi/6) X= ?
- Verify that the equation is an identity?
- How do you simplify #cos(sin^-1 x)#?
- How do you prove that #sin(a+b)=sin a cos b + cos a sin b#?
- A submarine travels 7.7 km due East from its base and then turns and travels due North for 4.9 km. How far away is the submarine from its base? Give your answer rounded to 1 DP.
- Cos75+sin75+cosec80-cot80=?
- If sintheta-costheta=0,then sin^4theta+cos^4theta=?
- How do you solve over the interval [0,360]? 2sinx-1= cscx
- If #cot theta=9/12# find the value of #(sin theta+ cos theta)/(sin theta - cos theta) + (sec theta +csc theta)/(sec theta - csc theta)#?
- If a trig equation has one answer, how many answers will it have?
- Period of 3sinx???
- How to simplify a trig function of a single angle of: 4 - 8sin^2 10?
- If #8cosx + 15sinx = 15# and #cosx!=0# then which of the following option is correct for #8sinx-15cosx#?
- Show that show that for all reals #a# and #x# we have?
- How do you solve the following trigonometric problem?
- If sin theta=20/29 and theta is acute then find the value of 3sin theta+4cos theta/3sin theta -4cos theta?
- What is the interval of the following function for which,#2tan^(-1)x+sin^(-1)[(2x)/(1+x^2)]# is independent of #x#?
- |cotx|=|cotx + 1/sinx| find the value?
- Could someone pls solve this bearings question?
- What is the value of (2cos 20°+2cos70°)?
- If #3secalpha-5tanalpha=k# and #6secalpha+ktanalpha=5# then what is the value of #k^2# among the following option?
- If #alpha=pi/18#, then is #cosalpha + cos2alpha +......+cos18alpha = 0#?
- #1-sin^2 3x#?
- Whats #sin(x+i(pi))# = can i get an nice value instead of a formula value please and if not why?
- How do you quickly find out which quadrant tan (23π/3) is in?
- How to prove 1 + cos^2/sin x - 1 = - sin x?
- Prove #sec 2x = csc^2x/ (csc^2x - 2)#?
- What is the correct option from the following for, #3tanx+27cotx>=#?
- How do you solve over the interval 0,360? cos^2 x+2cos+1=0
- If #sin(theta)+cos(theta)=sqrt(3)cos(theta)#, then what is the value of #2cos(theta)-sin(theta)# from the following option?
- Prove the trigonometric identity? work the left side
- Prove that Tan x =sec x ?
- What are the six trigonometric functions of 2x-y=0?
- How can I solve the problem?
- What will be the solution of the mentioned problem??
- Find the exact value. cos(7π/18)cos(17π/18)-sin(7π/18)sin(17π/18)?
- Simplify: Sin/cot(pi/2-theta)?
- How do you solve #2 csc x - 2 = csc x# where #0° < x < 360°#?
- 3cosx=2sin^2x?
- Simplify completely: tan2x(1 – sin2x)?
- Question: can you simplify the equation?
- If #sin x + cos x = 1.2#, then #sin x - cos x# can be written in the form #+-sqrtA#. What is #A#?
- How do you Solve over the interval [0,360]? 2sinx -1=cscx
- Evaluate #sin^4 15^@ + cos^4 15^@#?
- Prove the trigonometric identity?
- Tanα-sinα=tanα.sinα?
- The number of integral pairs (x,y) that satisfy the equation Cos{xy}=x Tan{xy}=y Is/are??
- Value of cos 2 theta in terms of cot theta?
- Prove sinh²+cosh²x=cosh2x?
- Possible or impossible??? Sec x =5
- If #cos(x) + cos^(2)x = 1#, then which of the following option is correct for, #sin^(12)x + 3sin^(10)x + 3sin^(8)x + sin^(6)x + 1#?
- If #2sin(x) + 5cos(y) + 7sin(z) = 14#, then what is the value of #7tan(x/2) + 4cos(y) - 6cos(z)# among the following option?
- If #sin(A), cos(A), tan(A)# are in G.P., then which of the following option is correct #cot^(6)A - cot^(2)A#?
- #1/(tan(A) + cot(A))= sin(A)cos(A)#?
- How do you prove this using trigonometric functions? TanY-Sec^2Y/TanY=-CotY
- How do you simplify cot^2x/cot^2x+1?
- Cos theta + sin theta times tan theta = 2, theta= ?
- Period of Cos(2x+7)?
- If sin(x) is -1.35 then what is x?
- Find the exact solutions in the interval [0,2π] for tan x/2=sin x/2 ?
- In parts of Siberia the average temperature varies between -23C in January and 5C in July. Find and graph a model for the average temperature.? (trigonometric function)
- Given sin a=3/4 and cos b=-12/13 with both angles in the 2nd quadrant, find: sin(a+b) and cos(a-b) ?
- What is the value of tan(9) - tan(27) - tan(63) + tan(81)? (all in degrees)
- Find all exact radian values if possible? 4sin^2x+2(square root of 3)sinx-(square root of 3)=2sinx
- Period of sin3x=?
- If #sum_(i=1) ^(n)sin(theta_i)=n # then #cos(theta_1)+cos(theta_2)+...+cos(theta_n) =#?
- The equation cos x=squareroot3/2 is an identity true or false?
- Please help me! How to convert 22.5 degrees to radian measure?
- How to solve tan(2(x+1)) = 1?
- How do you work out where construction lines go when sketching graphs such as #f(x)=x sin x#?
- If #sqrt(sinx) + cosx = 0#, the what is the value of #sinx#?
- How can I prove #cot^2(x) + sec^2(x) - tan^2(x) = csc^2(x) #? Thank you!
- If #sec(theta) + tan(theta) = 1.5# then in which quadratant does #theta# lies?
- If #x= sin(1), y=sin(2) & z= sin(3)# then, which of the following option is true?
- Use the scalar product to show that the angles ABC and A'B'C' are right. ?
- Find by using the unit circle sin -270 and sin360?
- Find all exact radian values if possible? #tan^(-1)x=sin^(-1) (24/25)#
- How do you solve sin x(cosx -1)= 0 over the interval 0 to 2pi?
- How do you demostrate this identity #sec^2x+2sin^2x+3cos^2x=(cosx+secx)^2#?
- Value of cos2 degree ?
- Find all real numbers that satisfy the following equation. Do not use a calculator: cos x = 1 where k is any integer?
- Find an equivalent rectangular equation to the given set of polar equations, then graph. x=2+3sint y=1-5cost for t in [0,2π]?
- How do you verify the identity #(cosx+sinx)(cscx+secx)=2+tanx+cotx#?
- Can someone help me with the following question that I have posted as an image? please help!!
- Prove :sinA/1-cosA + cosA/1-tanA = sinA+cosA ?
- What is the value of sinx=-1/sqrt2?
- Please how should i do the following question?
- Segment ACB of a circle is cut from the sector OAB where ∠AOB = θ rad. and O is the centre. The area of the segment is 1/4 of the area of the circle. How to show that θ - sin θ = π/2?
- Use the sum and difference identical to rewrite the following expression as a trigonometric function of a single number? #cos((4pi)/5)cos((3 pi)/10)+sin((4 pi)/5)sin((3 pi)/10)#
- How do you prove 1/(tanx-secx)-1/(tanx+secx)= -2secx ?
- How do you prove (tanx-cotx)/(sinxcosx)=sec^2(x)-csc^2(x)?
- For what value of #x# is #sinx=cos19°#, where # 0° < x < 90°#?
- Whats sin if tan is sqrt3?
- What is the period of 3sin(4x-pi)?
- What Trig Identities can you use to solve this problem?
- If (find) sec theta if tan theta =3/4 and theta is in quadrant 1 ?
- If sec^2 A + sec^2 B = 2,then find cos^5 A + sin^9 B =?
- How to find c? Please read the image and help me please!
- Simplify without using tables or calculations {Sin²315°(1-tan²210°)}÷{(1+cos²120°)(1+tan²330°)}?
- Solve the following equation in the interval [0, 2pi]. 2(sin(t))^2-sin(t)-1=0?
- How to solve ecuation: (#sqrt((1-sinx)/(1+sinx))#-#sqrt((1+sinx)/(1-sinx))#)(#sqrt((1-cosx)/(1+cosx)#-#sqrt((1+cosx)/(1-cosx)#=-4 ?
- Square root of 1-cos theta/1+cos theta=sin theta/1+cos theta?
- How do I solve sqrt(2sin(sqrt(x)))?
- What is the simple an algebraic expression of coth(lnx)?
- How do you prove: cos4x=1-8sin^2xcos^2x?
- Evaluate: tan45/tan30+tan60 (pweese explain)?
- 4sin2θ + 14cos2θ = 7 How to find cosθ??
- What is the exact value of #arcsin(tan(3pi/4))#?
- Can someone please help me with the question that I have posted as an image below??
- If the angle thetha =-60,find the value of sin thetha ?
- How do you prove sin3x/sinxcosx=4cosx-secx ?
- Solve 2(sec^2x+sin^2x)=5?
- How do I solve for theta in #cot(theta)=sqrt(3)/3# ?
- How to solve the equation #cos^4(x)-sin^4(x)=1+sin(2x)#?
- How do you prove that #(tan theta-cos theta)^2+ 4 sintheta= (tan theta+ cos theta)^2#?
- How do you evaluate #\tan (62)=\frac{20.31}{x}#?
- How do you find the exact value of tan(cos^-1( -5/13)) ?
- How to find the exact value of sin^-1(( radical 2) /2) ?
- If 3cotA=4,check whether 1-tan^2A/1+tan^2A=cos^2A-sin^2Aor not?
- If Y=Sin^2(x) + Cos^4(x) Then Show that Y=A+(cos^2(x) - B ) ^ 2 ?
- What is the inverse tan of a quarter?
- Cos^2theta+tan^2theta-1=tan^2theta?
- Prove that sinxtanx + cosx = 1/cosx ? Prove that cos^2x/sinx =1/sinx -sinx ?
- How to solve this trig equation cos2θ + sinθ = 0 for 0≤θ≤2π? thanks
- Range of f(X) = 1/[cos{arcsin(sinx + cosx)}] ?
- What are the number of real solutions of the equations of #cos^(7)x + sin^(4)x=1# in the interval #[-pi, pi]#?
- 4cos^2x=sin2x+3 x=?
- If sin A = 4/5 (A is in Quadrant ll), Find the value of CosA . Hence find the values of Sin 2A, and Cos 2A. show that Tan2A = 24/7 ????
- Can u prove this equation using only LHS #[cos(alpha)+-isin(alpha)]/[cos(beta)+-isin(beta)]#= #cos(alpha-beta)+-sin(alpha-beta)#?
- What is the value of #arc cot ( - 1)#?
- Find the value of #cos^-1(-1/2)+2sin^-1(1/2)# ?
- Cos (-90) is?
- How do you find the values of the six trigonometric functions of an angle in standard position if a point with #(5, -3)# has on its terminal side?
- How do you solve? cos(x)+1=0; x E R 4sin^2(x)-1=0; x E R I would appreciate any help on solving and how to arrange the equations so that they make sense please and thanks!
- If sin40° = a, what expression for sec 50°?
- Determine whether it is a trig equation or a trig identity?
- How do you find the exact value of the expression cos^-1(cos2)??
- Solving Trigonomic Equation. IF 0<x<360, what is the value of cosx in the equation 2cos^2x+sin^2x=41/25?
- Find the value of tan(-16π/3)?
- State the quadrant in whic the terminal side of the angle lies if it is measured -17 pi over 18 ?
- Prove? #"sin 2a"/"1-cos^2 a"* "sin 2a"/"cos a"#
- Hi, I cannot find the answer of my problem, Sin (2x) = - Sin (x) Anyone can help me ? Thanks
- Find the value of sin(-240)?
- How to proof # tan((3pi/2)-x)=cot(x)#?
- Prove#(sin^2A/cosA)-(cos^2A/sinA)=(secA/csc^2A)-(cscA/sec^2A)#?
- Solve :- #tan x = (√3) / (1+4cosx)# in the interval #0<x<180# How to solve?
- How to find the value of k give that equation has no solution?
- What is the value of sin(10)cos(20)sin(30)cos(40)sin(50)cos(60)sin(70)cos(80)? Not in radians, in degrees.
- What is the minimum value of #2sin^2theta+3cos^2theta#?
- If tan a =2 then a=?
- What is the period of sin(pi x/3)?
- Find the exact value?
- Solving Trigonometric Equations. Solve algebraically sin2x=0.5, 0<x<2pi?
- How do you write an equation for a sine curve that has a given amplitude of 3, period of (pi/6) which passes through the point (1/6, 0)?
- How does each constant and sign in the equation y = -3cos (x - pi/4) -2 affects the graph of y = cos x?
- write expression aterms of sincos and simplify ?1(cosbtanb+1)(sinb-1)
- Prove that :- 1-2cos^2(x)sin^2(x) = 1/2 {2-sin^2 (2x)}......?
- How do you proove this problem? tan(x)=(1 - cos(x))/(sin2(x))
- Express the given sum as a product of sines and/or cosines? cos 5x/2 + cos 15x/2
- If sin theta -cos theta = 0 then find sin^4 + cos^4 ?
- Does cot(-t-5pi) equal -cot?
- What is the value of 1-sin2x?
- Factorise (cos^2 (x) + cos (x) +1) please?
- Value of #(2sinx)/(sin3x)+tanx/(tan3x)=#?
- Value of sin^3 (630°-x)?
- If sin(theta)=3/5 And cos(theta)=4/5 Theta=(?)degree
- How do you prove this ? Sin^2 x (tan^2 x + 1)= (tan^2 x sec x)/ csc x
- How to solve; tan-1(1+x) + tan-1(1-x)=π/2 ?
- Use identities to simplify the expression? (sin^2x - cos^2x) / 1-2cos^2x
- How do I rewrite sin 3x with only sin x and cos x?
- Use the exact value of #cos((11pi)/6)# and the half angle identity for cosine to find the exact value of #cos((11pi)/12)# I think I have it, but can anyone help please?
- If 1-tan^2=2/3 find teta ?
- If tan(π/12)=2-√3 how can i calculate the value of sin(π/12)and cos(π/12)?
- Express sin 50° + i cos 50° in the polar form find r and θ?
- What is the value of cosx-cotx?
- How to solve this equation for 0≤θ≤2π? #5sinθ=6cos^2θ-6#
- What is the value of #tan^2(1/2 sin^-1(2/3))#..???
- If cot A=8/15 and sin A=15/17,then cos A=?
- A bridge perpendicular along a river.Going some distance from the river along the one end of bridge,the other end of the bridge can be seen at 45 degrees. if we crosses 400 meters further,the end where we start can be seen at 30 degrees.Length of bridge??
- How do you solve these equations?
- Can someone help me verify the identities for these please? Thanks!
- How do you find the values of the six trigonometric functions of an angle in standard position if a point with #(-8, -15)# has on its terminal side?
- Find theta in advanced trigonometry?
- #-4sin^2(x)+10sin(2x)-1-4cos^2(x)=0#?
- How do I solve this ? #sin(x) + cos(x) = sqrt(2)/2#
- Could someone help me solve this? I don't know how to start
- Finding the exact value of trig. expressions?
- What is # tan \theta# given the point (-3, 4) on its terminal side?
- Solve #x^2-9 = tanx # ?
- How do you solve? 1. (sen2a/1-cos^2 a)*(sen2a/cosa) 2. tan 15° by using tan(a-b)
- Solve cox X= square root 3/2 where 0 less than or equal to X less than an equal to pi2. a) how many solutions are possible? b) in which quadrants would you find the solutions?
- Evaluate Cot^2x/1-sinx=?
- Value of sin 20 = ?
- How do you simplify cos²(a) in terms of cos(a),sin(a) ?
- Verify that #(1+tan^2theta)(1-sin^2theta) = 1#?
- Prove that tan 15degrees=2- root of 3?
- Cos45 by sec30+cosec30 ?
- If 3tan=4,find the value of 4cos-sin/2cos+sin'?
- How can I solve this without using a calculator?
- Solving Trigonometric Equation. Rewrite the equation 3cscx - sinx = 2 in terms of sine. Then, solve algebraically for 0 < x < 2pi?
- Solving Trigonomic Equation. How do you write the equation Tan^2x + 2 = 0 in terms of sine only. Then, solve algebraically for 0< x <2pi?
- What is the general value of #theta# satisfying both #sin# #theta# = #-1/2# and #tan# #theta# = #1/(sqrt3)# ?
- How do you prove? (sen3a-sen5a) / (cos3a+cos5a)
- #cos(pi/8)+cos(3pi/8)+cos(5pi/8)+cos(7pi/8)=#? I tried to solve it and my answer was #2sin(pi/8)# Is that true answer? thanks alot
- If #sin(x)=2# find x?
- If [email protected][email protected]=√[email protected] then prove that [email protected][email protected]=√[email protected]?
- Prove that: #cos^2((theta+phi)/2)-sin^2((theta-phi)/2)=costheta.cosphi#?
- Prove that? root under 1+sin(theta)whole upon 1-sin(theta)=sec(theta)+tan(theta)
- How to Solve Tanx Cosx Sinx-1=0 algebraically, over 0 ≤ x <360 Deg.?
- What is the value of w ? sin^-1(.66)=w(.0065)
- Provevthat:#2tan^-1(tan(x/2) tan(y/2))=cos^-1((cosx+cosy)/(1+cosx cosy))#?
- Pls can it be prove 1-tansquare x/1-tansquare x?
- How to find exact value of the following expression?
- Find the value of sin2Φ–cotΦ?
- #Cos x /(1-sin x )=(1 +cos x+sin x)/(1 +cos x-sin x)# Please prove it?
- How do you graph #sin(pi(x/(1+x^2)))# ?
- Why is #1-cos^3x=(1-cosx)(1-2cosx+cos^2x)# a conditional equation?
- How do you graph 1/sinx +1/cosx?
- In the triangle below, the length of side a is 10 and the length of side b is 12. Given that the value of cos(theta) is equal to 1/5 find the value of cos(delta)?
- What is the exact value of the other primary trigonometric ratios of #tanTheta=(-5)/12# in quadrant II?
- If z=tanα +itanβ find |z| and arg|z| ?
- How to solve #cos x < |1|#?
- How to solve #tan x < |1|#?
- What is cot-1(2pi/3)?
- You want to run a wire from a point 120 ft from the base of the side of the plant building to the too is this side of the bullong. the angle of elevation to the top of this side of building is 65 degrees. this will require how many feet of wire?
- 3-4cos3x = 0, what is x between 90 and 270?
- If A+B=¶/4,then prove that: (1+tanA)(1+tanB)=2 ? THANKS
- If x+iy=2/(3+costheta+isintheta),show that 2x^2+2y^2=3x-1?
- Tan theta + sec theta -1/ tan theta - sec theta +1 = 1 + sin theta / cos theta.Prove LHS is equal to RHS?
- Solve? Write answer using general rule # 2+4cos t-sin^2 t=-3cos^2 t#
- Pls can someone find all the values of x solve for 0° < x < 360°... 2 sin^2 x = cos x +1 ?
- How are hyperbolic sine, hyperbolic cosine, and hyperbolic tangent used in real life?
- Find cos x if csc x = -5 and tan x > 0?
- What is the simplification of the given function? #sec^(-1)[(2sqrt2)/(1+sqrt3) ]#
- If sin theta+cos theta=2^1/2 cos alpha,then the general value of theta is what? Ans 2npi+pi/4 (+or-)alpha
- Solve? Write your answer using a general rule or rules. 2cos t=-root3 cos t tant-cos t
- What is the exact value of sin^-1(-1)?
- Sinx+cos(x/2)=0 wherein (0</=x<2π) solve for x? thanksss
- Sin thetha - cos thetha = 7/13 then the value of sin thetha?
- The range of f(x)=1-√x?
- How to solve this equation? #(1 + cosx) (1 + sinx) = 2 #
- If cas a= 1/4 and A is first quadrant find ? a) sin A/2 b) cos A/2
- A=9 b=6 angle C= 100degrees. use law of cosine to find A, Band c?
- If tanA+sinA=p and tanA-sinA=q. Then proove that #p^2-q^2=4sqrt (pq)# ?
- How do you solve this equation: #tgP=4-3ctgΩ#? Thanks
- Verify? #tan^2t csc^2t + cot^2t= csc^2t sec^2t-1#
- Solve? Write your answer using a general rule or rules. csc^2t-4=0
- Verify? (cost/1-tant)-(sint/cot t-1)=sint+cost
- Solve for 0 to 2pi ?? 4 sin^2 x + 2.5 = 5 cos x
- Verify? sec(t)+tan(t)/csc(t)+1=tan(t)
- If sin 0 + cos 0 = 1 ; then sin 0.cos 0 = ?
- How can i find x?
- How can find cos 37degre values.?
- How to prove #(tanx+1)^2=cos^2x+2sec^2x#?
- Solve the equation Cost(x) =cost(x) ×tan(x) ?
- If, tan x + cos x =2 then x=?. Given 0 <x<90
- How do you find min/max of #y=(sinx-cosx+sqrt(2))/(sinx+cosx+2)# ?
- #cos (tan^(-1) (4/3)) = "?"#
- #(cos4x)/(cos2y)+(sin4x)/(sin2y)=1# then prove #sin4x+sin4y=2sin(2x)sin(2y)#?
- 1+cotx/1+tanx=cotx what is the prove?
- If a cotA = b cot B,then triangle ABC is which triangle?
- #tan^2A=1-e^2# then show that #secA+tan^3AxxcosecA=(2-e^2)^(3/2)#?
- Find exact value using half angle?
- Varify if they are identities?: sec(π+x) = -secx
- How do you solve tan x - sin 3x = 1?
- What is pi explanation?
- #(cos2theta)/(1+sin2theta)=(cottheta-1)/(cottheta+1)#,prove?
- If theta belongs to 0 to 2pi. An equation tan(theta)=lambda and theta1 and theta2 are roots of this equation.Find the product tan(theta1/2)×tan(theta2/2).??
- What do you get when #[tan(x)]^2#? Is it #tan^2(x)# or #tan(x)^2#? Also is #tan(tan(x))# same as #tan^2(x)#?
- #sinA/(sqrt(1-sin2A)) = x# what is the value of #x#?
- Sinusoidal Word problems?
- How to solve 2 cos (x+15°) + 3 sin (x+15°)= 1.8 ? thank you for your help! :)
- How can I solve this?
- Prove that sin^8x-cos^8=(sin^2x-cos^2x)(1-2sin^2xcos^2x)?
- How do i know where to draw my terminal side in trigonometry?
- #sin(A-B)=1/2# and #cos(A+B)=1/2#, then find A and B?
- 1-cos4x=2 what?please,
- How do we find the angle that corresponds to sin^3(x)=1/2 ?
- Secx-tanx/ secx+tanx= cot^2(pi/4 + x/2)?
- -csc((3.14/2)-x)-tan^2xsecx simplyfy please ?
- What is the solution of the mentioned problem??
- How do you set up a trigonometric ratio?
- How do you find the exact value of this trigonometric expression? sin(cos^-1 (1/2) + tan^-1 (1))? Put another way, sin(arccos(1/2)+arctan(1)).
- Two hikers start from the same point; one walks 9km heading east, the other one 10 km heading 55degrees north east. How far apart are they at the end of their walks? *do I have to subtract 55 from 90 here?
- What is the inverse and domain of the following function? f(x)=8sin(3x)
- How to prove Cot(A+B) =(cotAcotB-1)÷(cotA+cotB)?
- Simplify \(\tan x+\cot x\) ?
- What is #cos theta+ iota sin theta# and #cos theta+ sin theta# ?
- Sin2x/(secx+1)×sec2x/(sec2x+1) ?
- Assuming that the Earths diameter is 6336 km and that subtends an angle of 56' at the centre of the moon, find the distance of the moon from the earth. Expain with figure clearly?
- Sin(#theta#)=0.434 or Sin(#theta#)=-0.767 Find the values of the angles in the ramge 0 to 360? ( 4 values)
- How do i prove that tan x + cot x= sin x/ cos x + cos x/ sin x?
- #(1-sinx)^(1/2)=#?
- Sin(x)=e^i^x.it is true or not. If true,then how ?
- What is cos(3pi/8) on the unit circle?
- (CosecA -cotA)^2=?
- How to prove cot x + tan 2x=cot x sec2x?
- Two circles are externally tangent. Common tangents to the circles form an angle of measure #2x#. How do you prove the ratio of the radii of the circles is #(1 - sinx)/(1+ sinx)#?
- If cos a equal to 2 divided by 5 then find the value of 4 + 4 tangent square a?
- Sin^4x+cos^4x=1-2sinx-cosx Is this correct?
- Given cos theta = 3/5 and theta is located in the fourth quadrant; find sin theta?
- If x+2=3sin θ,0<θ<π/2, what is the answer; expressed as cos 2θ in terms x?
- (1+sinA-cosA÷1+sinA+cosA)square=1-cosA÷1+cosA?
- If sin x + cos x = 1/3, find sin^3 x + cos^3 x?
- How can I solve this??
- First find all solutions in radians then find all solutions in radians in the interval [0,2pi). 2 tan x cos 3x = - sqrt(3) tan x ? Thanks
- What is the equation of the sine function with amplitude: 4 and period: 3pi?
- If #tantheta+costheta=2# then find the value of #tan^2theta+cot^2theta#?
- Solve √(3)cot(3x)+1=0, where 0 ≤x ≤2π wouldn't 17pi/3 also be a solution for this? im very confused
- This question is about f(x= -(x+1)sin(5x). ?
- If x,y are acute angles,o<x+y<90° and sin(2x-20°)=cos(2y+20°),then the value of tan(x+y) ?
- If,Tanx=25/2 then x=?°
- Prove that sec theta- sin theta tan theta = cos theta?
- What is solution of the mentioned problem?Please,help.
- How to find the exact solutions in the interval [0,2π] for sin 2x cos x = sin x?
- How to rewrite the following expression using double angle formulas. 6cos^2 x – 3 + 6sin x cos x?
- Cos x= p. find an expression for sin x, tan x and sin (90-x)?
- Solve the ecuation sinx+sin2x=2?
- 'sinx= 1/2 secx then find the value of sinx+ cosx'?
- What will be the solution of the mentioned problem?
- . Find sin theta ?
- How can I solve the mentioned problem?Please,help.
- Evaluate #lim_(x->0)(1-cosx)/x^2#?
- How do you solve 4sin²x = 3tan²x-1 for xER in radians?
- How do you find Sum and Difference formula for sec(a±b) only in terms of secant?
- How can I solve this problem?Please,help.
- If sec x =2then find sin x, cos x ,tan x, cosec x, sec x,cot x, cot x+cosec x ?
- The value of tan6°tan42°tan66°tan78°is??? Plzz some one help with this...
- Prove that tan(A+B)*tan(A-B)=cos²B-cos²A/cos²B-sin²A?
- Solve cox X= square root 3/2 where 0 less than or equal to X less than an equal to pi2. c) Determine the related angle for the equation? D) determine all the solutions for the equation?
- Can I find theta when n is an integer?
- Why 1+cos4x=2cos(2)2x?
- How to find the value of cot 45/2 degree value?
- If sin^4A+sin^2A=1 ,then prove that tan^4A-tan^2A=1.how can i do it????
- If #sin2x=-2/7# , and #2x# is in quadrant 4: what is #sinx# using the double angle formula? express as a fraction.
- How to Prove #(1+cosecx)(1-sinx)=(cosx)(cotx)#?
- How do you verify #(1-cos^2x)/(sec^2x-1)=cos^2x# ?
- Simplify the following: #tan(67.5^circ)/(1−tan^2(67.5^circ))#?
- Solve this trig equation? 5tan3x=2, 0<x<180
- How do you express #f(theta)=-sin^2(theta)+cot^2(theta)-2tan^2theta# in terms of non-exponential trigonometric functions?
- 5sinA+12cosA=13 ½ (TanA+cotA)=?
- How to solve sin(x/2) =cos(x) for x element of the real numbers(all solutions)?
- When converting polar equations in Cartesian equations, how do you deal with #theta# when it is on its own?
- Solve? #cos(3x/2)*(sinx+sqrt(2)*cosx)=sin3x#
- How to get #sec^2(4x) - sec(4x)=0# , in exact values for x?
- Prove that #cos((2pi)/9)*cos((4pi)/9)*cos((8pi)/9)=-1/8#?
- What is the solution of the mentioned problem?
- How do solve the equation, 3 sinx Sin2x = 2cos³x, giving all solutions in the interval 0<x<2pi, in terms of pi?
- Given #cos(a+b)=0# prove #sin(a+2b)=sina#?
- If (cos(a))((cos(b))-((sin(a))((sin(b))=1 then proved that 1+((cot(a))((tan(b))=0?
- How do you prove sinA+tanA = tanA(1+cosA) ?
- If # tan(a)+sec(a)=x/y# then proved that #sin(a)=(x^2-y^2)/(x^2+y^2)#?
- 14.How would you solve this?
- Prove that sin(theta)+sin2(theta)/1+cos(theta)+cos2(theta)=tan(theta)?
- I am in eighth grade and I have seen some questions on this website with 'sin' in them. What is 'sin'? I am very curious
- What will be the solution of the mentioned problem??
- Could someone help me to find the solution of the mentioned problem?
- How do you solve? 5cos2x+3sinx=4
- How do you prove (cotx-tanx)/(cotx+tanx)=cos2x?
- How do you prove 2sin^2 A-1=sin^2A-cos^2 A ?
- #tan x = 0, pi/2 <= x <= pi, then sec x =?#
- Find the exact values of sin(u/2), cos(u/2), and tan(u/2)? Given: sec u = -6, pi/2 < u < pi
- Find the exact values of sin 2u, cos 2u, and tan 2u? Given: sin u = -4/5 , pi < u < 3pi /2.
- How do you prove cos2x/1-sin2x=1+tanx/1-tanx ?
- Sloution for cos(22.5°)?
- Sin 2 theta / 2 sin theta =cos theta?
- In the triangle below, c=251km Solve the triangle for sides a and b using trig functions of an acute angle -O- Round to the nearest hundredth of a unit. Can you help find the correct answer? See attached image
- How do you solve #cos(x) - sqrt2/2 = sin(x)# for the interval 0° ≤ x ≤ 360°?
- #8sin^2(x)+4=6#?
- How can I prove that?
- Help me .. Determine the period and image and make the complete graph of the following function? A) f (x) = -2sen
- Consider equation #5/2cos(2x)-1/2=3sin(x)# a) Put the equation into standard quadratic trigonometric equation form. b) Use the quadratic equation to factor the equation. c) What are the solutions to the equation to decimal places, where #0<=x<=360^@#?
- Use a compound angle formula to demonstrate that sin(2pi-x) = -sin(x)?
- Penny needs to find cos #pi/12#. If she only knows that cos #pi/6 = sqrt(3)/2#, how can she find cos #pi/12# using a double angle formula? What is her answer?
- Prove that 1-tan^2x/1+tan^2x = cos2x is an identity?
- Given that #tan2A = 3/4# and that the angle #A# is acute, calculate, without using tables, the values of: (i) #cos2A# (ii) #sinA# (iii) #tanA# (iv) #tan3A# ?
- If cosA+cos^2A=0 then what is sin^2A-sin^4A?
- 2cos70.cos20=cos50 prove it ?
- Find the value of # sin(2tan^-1 (2/3))+cos(tan^-1√3)?#
- Who do I prove that the RHS is equal to LHS? Sin2x (tan x + cot x) = 2
- What is the value of # y # in #sin99/(5y-18) = sin49/(3y+2.7) # ?
- Tan²x=2secx-1 solve?
- Cos^2x/1-tanx +sin^2x/sinx-cosx=1+sinxcosx? Prove it.
- 2sinx=cscx solve between 0°and 360°?
- #(1-cosx)/(1+cosx)# where #x=3/4#?
- How Solve function?
- What is #\arcsin ( \sin ( \frac { 2\pi } { 3} ) ) #?
- How do you find all exact solutions on interval [0,2π): cos^2 (θ) =1/2?
- The height of a house subtends a right angle at the window of another house situated just on the oposite side of the road.The angle of elevation of the top of the first house from the window is 30deg.If the road is 4sqrt3 meter broad,find hgt of 1st hous?
- Solve for the following equation in the interval [0, 2#pi#): #3cos^2theta + sin^2theta =2#?
- How can I prove that the following equation is right? 2*sin(x)*tan(x)*sec(x)=2
- 2cos(3x-pi/6)-1=0 How to solve this? Please
- How would you find all solutions on the interval 0,2pi of Square root 2sin 2x =1 ?
- Cscx^2-2/(cscx^2)=cos2x?
- If the tan x = -2, what is the sin?
- A ship is anchored off a long straight shoreline that runs north and south. From two observation points 17 miles apart on shore, the bearings of the ship are N 37° E and S 52° E. What is the distance from the ship to each of the observation points?
- How do you solve exactly on [0,2π): 2sin (2θ)= √(3)?
- What is the exact value of sin (sinˆ-1 2) ?
- Use the product-to-sum formulas to write the product as a sum or difference? 4 sin 3a cos 2a (a is alpha)
- What is the domain of #f(x) = sqrt[cos(sinx)]#?
- Hi there! Can you take couple minutes to help me out with a sound wave question please? Thanks!
- How do you solve the equation 1-2cot^2x = 5/sinx for 0 ≤ x < 360 ?
- How do you prove #1-sin4a+cot((3)/(4)\pi -2a)(cos4a)=0# using trig identities?
- Find the other 5 trig functions?
- How do you write a cosine equation with these given values? amplitude = 3 period = 8π phase shift = 3π/2 vertical shift = -4
- How do you simplify cscx-cosxcotx?
- How do you simplify cosxsin^2x-cosx?
- How do you simplify an expression with Pythagorean identities?
- ¿how you prove?
- Sin20cos40+cos20sin20=square root 3/2?
- 1/cosx+1/sinx=?
- A plane rises from takeoff and flies at an angle of 10 degrees with the horizontal runway. When it has gained 800 feet, what is the distance the plane has flown?
- How do I veryify the following identity? 1-cosx/sinx+sinx/1-cosx=2cscx
- Use the sum-to-product to formulas to write the sum or difference as a product? Given: cos(x + pi/6) - cos(x - pi/6)
- How to prove #sin(4x) = 8 (cos^3)x sin x − 4 cos x sin x#? With sin(4x) = Im(e^(i4x))
- Sec^4(x) - 2tan^2(x) + 1 = 0 ?
- Sin(Theta - pi/6) = cosTheta Find the value of tanTheta (without using a calculator)?
- #(tan θ- cot θ ) +( cot θ- tan θ ) = 1+secθ* csc θ# prove that?
- Multiply and write the left side expression as the difference of two squares. (SecΘ+tanΘ)(secΘ-tanΘ)=1?
- How do you prove #(tan(2a)+cot(3b))/(cot(2a)+tan(3b))=tan(2a)/tan(3b)# ?
- How do you prove that, 2tanx=cos(2x)tan(2x)sec^(2)x is an identity?
- 4 sec x-csc x=O Solve?
- Sin2π value?
- Find all solutions of #sintheta# =0.5 in the region 0 #<=theta>=# 720#*# ?
- Determine the exact values of the six trigonometric functions of the angle θ?
- Sin 22.5°=? With full detail
- Find an exact value? cosine of 19pi/twelve
- If #(sin(2x)+sin(2x)+sin(2x))^2+(cos(x)+cos(x)+cos(x))^2=1#, then find the value of #cos(x)#??
- How to prove #sin(4x) = 8 (cos^3)x sin x − 4 cos x sin x#?
- If *tanƟ = -√3* and *π/2 < Ɵ < 2π* then find the values of Ɵ?
- If the cot x = 3/2, what is the sin x?
- How do you evaluate #\cot (45^\@ )-\cos (30^\@ )#?
- Prove that #(sinx-cosx+1)/(sinx+cosx-1)=1/(secx-tanx)# ??
- Vectors a and b are orthogonal. If a= 6i+4j and |b|= 2 units, what are the possibilities for vector b? (Must have Vertical and Horizontal components for all possibilities.)
- How do you simplify the following trigonometric expression?
- (CosecA-sinA)(secA-cosA) =1/tanA+cotA?
- (Sinx + tanx) / cosx+1 = tanx?
- Express cos(2 theta) in terms of x?
- Find theta in degrees that lies in quadrant 2 such that sin(theta) = 0.735 ?
- Cos x - cos 3x? Thanks for the previous help
- How do you solve #\sec \theta = 1.2746#?
- How can you verify cos(2x-1)/(sin2x)=-tanx?
- Without using tables or calculator,calculate #sin(315^@)# and #tan(600^@)#?
- Sin^2x+sin^2x cot^2x ?
- How to prove this? #(1/(sec^2(a)-cos^2(a))+1/(csc^2(a)-sin^2(a)))cos^2(a)sin^2(a)=(1-cos^2(a)sin^2(a))/(2+cos^2(a)sin^2(a))#
- Tan(x/2), if sin x= 7/25 and x is between 0 and 2pi?
- How does one solve #4sin^2(2x) - 1# for x?
- 1+sinx-cosx/1+sinx+cosx ?
- How do you prove tanx tanx(1/2)=secx-1?
- How do you prove #1-4sin^4x=cos^2x(1+2sin^2x)#?
- Find the quotient and write the result in a+bi form? #(16(cos240^\circ+isin240^\circ)) /(8(cos90^\circ+isin90^\circ))#
- Q. Find no of real value of #x# satisfying #e^sinx=2^x+2^-x#?
- How do you simplify cos 24degrees cos 36degrees - sin 24degrees sin 36degrees?
- Trig identity for (cos x- sin x)^2= 1-2 sin x cos x ?
- Solve for solutions over the interval (0,360). How to solve? Cosx(cosx+2)=0
- Find arcsin((1+√5)/2) =?
- In a triangle ABC, #tanA:tanB:tanC = 1:2:3#. Hence #sinA:sinB:sinC# is equal to?
- If tan62°=p/q then tan28°=?
- How to find the value of theta in degrees (0*< theta < 90*) and in radians (0* < theta < pi/2) of csc theta=2, cos theta=radical 2/2, and tan theta=1?
- If 3π/2≤ θ≤2π and cosθ=8/13, find sin(2θ), cos(2θ), and tan (2θ)?
- Find the amplitude of the function #2y=cos (4(t-6))+6#?
- Find speed in Km/Hr ?
- 1-(sinθ+cosθ)(sinθ+cosθ)/sinθcosθ= multiply and simplify please?
- What is the value of Cos -30?????
- How would I use rectangular coordinates to write an equation using polar coordinates?
- Find the exact value?
- How to verify this identity? sinx cosx Sin^2x + ________ = 1 Tanx Please show step by step because this will be on my exam tm... 😬
- By express sinθ and cosθ in polar form how can i show that sin^2θ + cos^2θ=1?
- How do you verify (cos2x-1)/(sin2x) = -tanx?
- What is tan(sec^-1(-2))?
- Change to rectangular coordinates? r(4 − 4cos θ) = 4
- Convert to polar coordinates?
- If #Sin17^@ =x/y# , then show that #Sec17^@ - sin73^@ = x^2/(ysqrt((y^2 - x^2))# ?
- What is 2sin5xcos5x as a single trigonometric ratio?
- IF A=30degree;show that: (sinA-cosA)whole square=1-sin2A ?
- Prove that? cos(π/10-A)cos(π/10+A)+cos(2π/5-A)cos(2π/5+A)=cos2A
- If sinθ=-4/5 and 630<θ<720, what is sin2θ?
- If sinθ=15/17 and 90<θ<18, what is cos2θ?
- If cosθ=-3/5 and 90<θ<180, find sinθ/2?
- Prove that tan^2x+cot^2x=sec^2x+csc^2x-2 ?
- Prove that, can anyone help me, please?
- Solve the trigonometric equation in the interval [0, 2pi) Give the exact value, if possible; otherwise, round your answer to two decimal places. How do I find the exact values?
- Prove that 2 cos X / cotx.cosx-sinx = tan2x ? Thanks
- Sin(n+1)x sin(n+2)x + cos(n+1)x cos(n+2)x = cosx proof?
- If angle A=20, side a=30, and side c=40, what are all possible values for angle C? .
- Sqrt(1+sinx/1-sinx)=?
- If A+B=π/4 Prove that (1+tanA)(1+tanB)=2 and (cotA-1)(cotB-1)=2?
- Solve equation with tan(x) and cos^2 (x) ?
- How to solve this identity? Thank you!
- How to solve this identity? Thank you!
- Show that #sin 20° .sin 40° .sin 80°=√3/8 #?
- Use DeMoivre's Theorem to find the indicated power of the complex number. Write the result in standard form. what is the correct answer for 3(cos(150°) + i sin(150°))^4?
- If tan(theta)=-3/4 and theta is greater than 90 and lesser than 180 find cos(60−theta)?
- How to prove that this triangle is right-angled?
- Prove that cos 225° .cos 135° +sin 225° .sin 135° = 0 ?
- How to solve cos x - (1/ sinx)? Give you answer in terms of sin or cos
- If one side and two angles of a triangle are given, which law can be used to solve the triangle?
- #[(tanx + secx +1 )(tanx -secx +1)]/tanx =2#?
- How do you prove that this trangle is isosceles?
- How do you solve #\tan ^ { - 1} ( \frac { 12} { 5} ) = \cos ^ { - 1} x#?
- What's the value of 2cos2x?
- Expand using DeMoivre's formula? (2sqrt3 -2i)^5
- Can someone plz help? Solve the equation algebraically by using the Pythagorean trigonometric identity: #1/cos^2x=1-tanx# Please note that I am in a high school level calculus course! Thank you in advance <3
- Eliminate '#theta#'?
- How to do this?
- How to prove tan x = sin x / cosx rather mathematically?
- By first expanding the compound angle brackets, solve the equation sin(x+60)=2cos(x-45) for 0<=x<=360 How do you do this?
- How to solve this identity?
- Prove the identity? #(1 + cotx)^2 + (1 - cotx)^2 = 2csc^2x#
- What is y=7 in polar form?
- How to find sin inverse cos inverse without calculator???
- Find all the fourth roots of the complex number #-8+8i(sqrt 3)# ?
- Sin 2x + sin 3x + sin 5x = 0 0° < x < 180° solove the equation?
- How do you find all the angles between 0° and 360° which satisfy the following equation? sin(x+30°) = 2cosx
- In #DeltaABC#, the value of #(a cosA + b cosB + c cosC)/(a+b+c)# is equal to?
- What's the domain of this equation? Tan(x)/3-5cos(x)
- How to prove that # (2 sin theta * cos theta - cos theta ) / ( 1 - sin theta+ sin^2 theta - cos^2 theta) = cot theta#?
- Solve for...?
- Help me please ?
- How to solve this identity? Thank you!
- How to make this expression independent from B? thank you!
- #cosx <= - 1/2 ,[0,2pi]# #x =#?
- How to simplify it and leave no fractions ?
- Complete the identity. sec(α + β) sec(α - β)=?
- If angle of elevation of flag put on tower of height 25m is 45degree then find distance between foot of tower and person?
- If sin(u)=4/5, cos(v)=5/13, and u+v is in quadrant 1, find cos(u+v). How do you solve this?
- If tan they = 1/√3 find the value of sin(90°-theta)?
- Solve the equation on the interval #[0,2pi]#. Suppose #f(x) = 4 csc(x) -2#. Solve #f(x)= 2#?
- #tanx-√3cotx+1=√3# find the value of universal value of x ?
- Value of sec 30 ?
- What are values of θ for 0<θ<3π for which 2sinθ-1=0? Thanks!
- What are values of θ for 0<θ<360degrees for which 2cos3θ-1=0? Thank you
- How to do this one?
- What are the solutions to the equation sin^2x+cosx=-1 on the interval 0 ≤ x < 2pi?
- How to solve #3sin(x+10)=cos(x-20)#?
- Sin^-1(3/5) + tan^-1 (1/7)?
- Cos(π/4 + 2π/3)=??
- How do you simplify 1/ 1-cos theta + 1/ 1+ cos theta = 2csc^2 theta?
- How do you simplify #2*cos(x/2)^2#?
- An airplane travels at 125 km/hr...?
- Sin(2x)sin(x)=cos(x) What’s all the solutions?
- What are the solutions to sin^2β - sinβ - 2=0 on the interval 0° ≤ β ≤ 360°?
- How to you simplify cotx+tanx?
- What are the solutions to 2cos^2x=cosx on the interval [0,2pi)?
- If tan x=4 0 <0 <90° find sec^2x?
- What is the smallest positive value of theta which satisfies the equation #2cos ^2 theta - cos theta =0#?
- If #sin 2theta = 2sinthetacostheta#, what is #sin 50theta#?
- #Sin(x)/(1-cos(x)) + (1-cos(x))/sin(x)# ?
- Prove the identity tan^2x-sin^2x is same as (tan^2x)(sin^2x)?
- Find the exact value of sin(u+v) given that sin u=3/5 and cos v= -24/25. (both u and v are in quadrant 2.? please help I have a final
- If sinx-cosx=1/3,Then what is the answer of cos4x?
- Solve for 3sec^2x-7secx=2?
- Find all solutions for sin^2x=3cos^2x?
- Formula of 1-sinx?
- Find sin x/2 if cos x=-31/49 and x is between pi and 2pi?
- (1-cos^ theta) sec^2 theta) Simplify it?
- How it comes tan2x=-3 becomes x=71.6 ?
- Trig - What are the values that satisfy this trig equation?
- Find the values of θ in the range 0 ≤ θ ≤ 2pi for which cos 3θ = -1?
- Cos3x.cosx-1=0?
- How to solve this ?
- If cos theta = -4/9 in quadrant 2, find sin theta?
- How do you express tan^-1 [cos x / (1-sin x) ] in the simplest form?
- Find √1+sin theta/1-sin theta=(cosec theta + cos theta) ?
- Prove that sin(A+B)*sin(A-B)=sin^2A-sin^2B?
- How do you convert the rectangular equation x^2+y^2=4 into polar form?
- Establish the identity?
- If #sec A = \sqrt 2#, what is #(3cot^2 A +2 sin^2 A)/ (tan^2 A -cos^2 A)#?
- How to verify #(1+sec(x))/sec(x)=sin^2(x)/(1-cos(x) )#are equal to each other...?
- How do you simplify #cos^2##x/10##-##sin^2##x/10# ?
- Find the general solution of #sec4theta - sec2theta =2#?
- 48 sin^2(x) = 48−24 cos(x) How would you even start to approach this? I think it simplifies to cos^2(x) = 1/2cos(x), but I don't know where to go from there.
- cos 2θ = 3 sin θ − 1?
- A=9 b=6 angle C= 100degrees. use law of cosine to find A, Band c?
- How do i simplify sin^2-cos^2x/sin^2x-sinxcosx?
- Find the exact value of the sum? #Cos (pi/12) - cos (5pi/12)# Options are #sqrt 2/2, sqrt 3 /2 , -1/2, - sqrt6/2#
- Simplify the repression by using a sum or difference identity? Cos pi/5 cos 2pi/15 - sin pi/5 sin 2pi/15
- Sum to product identity to rewrite the expression? Sin(pi/13) - sin(pi/2)
- How do you express x^2+(y^2/4)=1 in polar form?
- a cos theta + b sin theta=c then prove that asin there - bcos there=+-√a2+b2-c2 ?
- What is the exact value of 1-tan^2(25)+csc^2(65)?
- Hi ! How do you find #2arctan(sqrt(1+x^2)-x)+arctan x = pi/2# ? Thank you
- How would one prove the identity of #sec2(theta)=(csc(theta))/(csc(theta)-2sin(theta)#)?
- Tan(2x-78)=-1.57. What is the value of x and the basic acute angle involved ?
- Could you please help with this trig?
- 1-sin2(x) / cos2(x) = cos(x)-sin(x) / cos(x)+sin(x) ?
- Cos (1+x) = .3 x equals what?
- If A+B=π/4. Prove that (1+tanA)(1+tanB)=2 and (cotA-1)(cotB-1)=2?
- What is the smallest possible 22.5° (I don't know the right terminology for the other 2 angles) right triangle with the hypotenuse and legs as natural numbers?
- How do you evaluate #3\sec (\frac{\pi }{4})-3\sec (0)#?
- Cos θ =3/4, 0< θ < 90 ?
- Finding the coordinates of a maximum point on a sine graph given it's x value and some intercepts. Also, what are the vertical and horizontal phase shift values?
- Sin^2x-cos^2x=1+sin2x?
- How does #cos((3pi)/4)# turn into #sqrt2/2#?
- Solve sin(x)=-0.82 on 0<= x<2pi ? A= B=
- Solve cos(x)=-0.57 where 0<= x<2pi?
- A point on the terminal side of angle #\theta# is (9, 12). What is cos #\theta#?
- What trigonometric identities can you use to solve cos^2(theta) - sin^2(theta)=sin(theta)?
- Prove that: ?
- Find all the solutions in the interval 0<x<360, to the equation 8-7cosx = #6sin^2x#, giving solutions to 1 d.p. ?
- How to solve #cos(x)+sin(x) > 0#?
- Solving this triangle?
- (Sec 2x) / (Sec2x + 1) = tan^2 x ?
- Explain how to determine the exact value of cos2x and tan2x if sin^2x=25/36, where π/2<x<π?
- Solve: tan(2x−15)=0, for values of x such that 0≤x≤360?
- Cos2theta= 4/5 solve for theta?
- How to solve this ?
- How to do this question?
- What is cos 120?
- How would you solve this?
- How to write sin^3(2x)?
- Can you help with this?
- How do You solve ? Sin x + √3 sin x/2 = 0
- If sin α = -6/7 and α is in quadrant III what is sin α / 2?
- #-Sin^3x/(1+cosx) + cos^3x/(1+sinx) = sqrt 2(cos (pi/4 +x)# ?
- If #cos2.5x=0.3# then #cos5x#?
- How do you write # (cos(2pi/3)-isin(2pi/3))^11# in the form a+bi?
- How would I verify this identity?
- How to solve this co2X=sinx using graph?
- Solving this triangle?
- Factor and simplify please?
- Simplify please?
- Prove the identity?
- How do you find the amplitude, period, and phase shift of y=2+sin(x+π/4) ?
- How do you prove de Moivres theorem?
- If sinx+cosx=a then find value of sinpower6+cospower6?
- Using half angle formula find value of 292.5 ?
- If #sec \theta + tan \theta = m#, how do you show that #(m^2 -1)/(m^2 + 1) = sin \theta#?
- Evaluate Sin^-1[cosπ/2]=?
- Solve equation #4(sin^2(2x)) +7(sin^2x)-2=0# For #0<x<360#?
- Solve the given equation. If there is no solution, enter NO SOLUTION: cos2x=5sinx-2?
- Cos(3x) + cos(5x) + cos(7x) = cos5x(2cos2x + 1). Prove the identity?
- How do you prove this? Thanks!
- How do you evaluate #tan 27°#?
- Graph a sine function whose amplitude is 5, period is 6π , midline is y=−2 , and y-intercept is (0, −2) . The graph is not a reflection of the parent function over the x-axis.?
- Find all solutions in the interval [0,2pi) 2cos^3(3theta)-cos(3theta)=0?
- Prove that cos(theta)-√3sin(theta)=2cos(theta+π/3)?
- If tan A=n tan B and sin A = m sin B then show that cos²A=(m²-1)/(n²-1) ?
- Prove that tan(A+B)*tan(A-B)=cos²B-cos²A/cos²B-sin²A?
- Cos 5 pi divided by 3?
- From the top of a hill, the angles of depression of two consecutive kilometer stones due to east are found to be 30° and 45°. Find the height of the hill (or) what is the height of the hill?
- What is a numerical value of cos^2 x + 2sin x -2?
- If #cos (pi/6) = (sqrt 3/2)#, how can I find #cos (pi/12)# using a double angle formula?
- #cot765^@ = #? #sec765^@ = #? #csc765^@ = #?
- In triangle ABC given: #cos(A)=sqrt(2)//2# and #cos(B)=sqrt(3)//2#. Then, #cos(C)=#?
- If sinA = 6/10 finde tanA??' If 90<A<180
- If #cos^(2)20^@-sin^(2)20^@=p# then #sin80^@=#?
- If #sinalpha-cosalpha=p#, then #sin2alpha=#?
- If #3sinx+5cosx=4, then #(3cosx-5sinx)^(2)=#?
- How do you prove #(sin 8A cos A -sin 6Acos 3A )/ (cos 2 A cos A-sin 3Asin 4A) = tan 2A#?
- Finding values for theta, trig question?
- If # tan 2\beta = - \sqrt 3# and # 0 <= \beta <= \pi#, what is #\beta# ?
- How can I factor #2sin^2 - cos - 1#, and then solve f(x) = 0?
- How do you solve the following equation? 2cos^2(3x)-3sqrt2cos(3x)+2=0
- #csc(theta)-cot(theta)=1/sqrt3# then #cos(theta)=#?
- if #sintheta+csctheta=2# then find the value of #sec^3theta + csc^3theta#?
- Fint the value of #Sin theta + Cos theta# ?
- How do you verify 1-sinxcosx=1-sin^2xcotx?
- How does one factor the expression #3sin^2 - 11sin +6#, find the two values of sin x which satisfy the equation #3sin^2 - 11sin + 6 = 0#, and solve the eqution when x is between 0 and pi?
- If angle theta = 90°,find value of sin theta ,cos theta ,sec theta ,tan theta?
- If #3Sec theta = x and 2Tan theta = y #, then how #x# and #y# are related ?
- How to solve this word problem?
- How can I use cofunction identities to evaluate #cos^2 41 + cos^2 37 + cos^2 49 + cos^2 53#?
- How can I use conjugates to verify that #1/(1-sinx) =sec^2x +tanx secx#?
- Find an angle between 0° and 360° that is coterminal with -225°?
- How do you prove the identity ([email protected]@)^2 [email protected]@ ? Note: the @ symbols represent “theta”
- 2cos(x)+√3=0 find the solution in the interval?
- How do I verify #sec(theta)/tan^2(Theta)-cot(theta)csc(Theta)=0# ?
- How do I verify: #(cos^2(Theta)/(1-sin(Theta)))-1=sin(Theta)# ?
- What is are the following values?
- how do you prove : tanx * sin^2 x + sinx * cosx = tan x ?
- Can you please simplify( tan60 -tan20)/1+tan60tan20? thanks.
- Find the general value of (theta) satisfying: 1) sin2(theta)=1/2 2) cos2(theta)=1/2 3) tan3(theta)=1/√3 4) cos3(theta)=-√3/2 5) sin²(theta)=3/4 6) sin²2(theta)=1/4 7) 4cos²(theta)=1 8) cos²2(theta)=3/4??
- How do you prove? tanθ + 1/tanθ = cscθsecθ
- What is the value of Sin(3π/6)?
- #[cos(alpha)+cos(beta)]²+[sin(alpha)-sin(beta)]²=4cos²((alpha+beta)/2)#?
- Prove that #cosA/(1+sinA)=tan(π/4-A/2)#?
- Use a sum or difference formula to find the exact value of the trigonometric function. tan15\deg?
- What is the value of Cos7π+sin7π?
- 1+cos2z=2cos^2z ? prove using circular function of complex number
- Is there any relation between (TanA-tanB/1+tanAtanB) and (1-tanB/1+tanB).?
- Sin3z=3sinz-4sin^3z? Prove using circular function of complex number
- How to solve -2=-1+tanx? answer must a degree or degrees as answer
- How to solve #2 cosh(2x) + sinh(x) = 4# ?
- What is the exact balue of tan(cos^-1(sqrt(2) / 2)?
- How do you prove that #1/2(sin x)^2 = 1/2(cos x)^2# ?
- What is 2sinx-√3= 0 ?
- Hey is sin(-60) negativa but cos(-60) is positive?
- Without using a calculator, evaluate?
- What are the exact values of the six trig functions for 11pi/6 ?
- Solve the equation by factoring. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.)?
- Find sin(x/2), tan(x/2), and cos(x/2) from the following information?
- What is the solution to arcsin x + arccos (-1/2) = pi ?
- How to simplify (sec(x)+csc(x))^2 * cot(x) ?
- How sin (180-c) = sin c?
- 30"in radain?
- What is the exact value of sin(u+v) given that sin(u)=-3/5 and cos(v)=-5/13? (both u and v are in quadrant III)
- How can I solve #3sin^2x+4cosx=4#, where 0 degrees is less than or equal to x, and x is less than or equal to 90 degrees?
- How do I solve #3cot^2theta+10cscθ=5# for #0≤theta≤360#?
- The question asks to "determine if x=pi/3 is a solution of 4sin^2 ((1/2)x + pi/3)-3. Is it?
- Sin45+sin60=sin90?
- Prove that #2sin(A/2)=+-sqrt(1+sinA) +-sqrt(1-sinA)#?
- How to find Cos 540 degrees without using calculators?
- How can I use conjugates to verify that #(sin^2thetatan^2theta)/(tantheta-sintheta)=tantheta+sintheta#?
- A building subtends a right angle at the top of a pole on the other side of road . The line joining the top of the pole and top of building makes an angle of 60° with the vertical .if the width of the road is 45m. find the height of the building.?
- Simplify to the single function? 2sin((x+y)/2)cos((x+y)/2)
- #Sin(x) - tan(y)cos(x) = sin(x-y)/cos(y)# ?
- (sec(x)-cos(x)) (csc(x)-sin(x)) ?
- Calculation of vector?
- Simplify to a single function? #cos(2x)*sin(2x)#
- Find the length of the arc between the angles 7pi/6 radians and 3pi/2 radians , on a circle radius of 2?
- How can I verify that #(1+cot^2theta)tan^2theta=sec^2theta#?
- How can I find all values of #theta# for #4cos^2theta+4costheta+1# with the domain being 0 degrees is less than or equal to #theta#, which is less than or equal to 360 degrees?
- How do you prove that (sin(x) + cos(x))/cos(x) equals tan(x) + 1? Thanks!
- How do you simplify this to a single value? cos(-x)-cos(x)
- How do you solve (sec x+tan x)^2 = 1 + sin x / 1 − sin x ?
- H do you verify sinx +cosx+cos^2x= ((cosx(1+cotx))/cscx?
- Verify the identity. (Remember to only work on one side of the equation) (sec x+tan x)^2 = 1 + sin x / 1 − sin x ? help!
- How prove that #sin² x# is periodic and its period is #pi# ?
- A=10;then the value of cosA+cos2A+cos3A +.....+cos18A =?
- If 11A=90,then tanAtan2Atan3A...tan10A=?
- Cos^2θ-sin^2θ=1+tan^2θ/1+tan^2θ?
- Calculate Cn and Sn?
- How do I solve 2cos2x-5cosx=4?
- what are the solutions to -2cos(x/3) - sqrt3=0?
- Find a simplified expression for #sin(cos^(-1)(y/7))#?
- Solve the equation cos (x) = 0.2 in the interval from -90 degrees to -450 degrees. How do you get the final answer in degrees?
- Find all the solutions of the equation (cos(x))^2-cos(x)-2=0 which lie in the interval [-2pi,2pi]?
- Evaluate cos(-870^)?
- If sinx =1 then whai is the value if sin 3x ?
- Sin x / csc x - cot x = 1 + cos x ?
- Am I allowed to open these brackets of t the angle?
- What is the exact value of #(7pi)/12#?
- #Sec^6x(secxtanx) - sec^4x(secxtanx) = sec^5xtan^3x#? (proving)
- Calculate the exact values of the following expression?
- Which Law of Sines applies to this?
- How do you prove that #\frac { \cos 7x + \cos 5x } { \sin 7x - \sin 5x } = \cot x#?
- Under root 2 into sin pi by 4 plus theta is equal to cos theta plus sin theta prove that?
- Two angles are at right angle. The third angle is 150 degree and the remaining angles are equal. Find the remaining angles?
- Using the Law of Sines?
- How do you simplify #(sinxcosx)/(1-sin^2x)#?
- How do you write in terms of sine and cosine, then simplify? cot(θ) / csc(θ) − sin(θ)
- If I write cos120°=cos(90°+30°)=sin30° .....will it b right?
- What is the value of cos^2(180)?
- How do you prove #sec^2x-2secxcosx+cos^2x=tan^2x-sin^2x# ?
- #Sin2x=2^(1/2)cosx# find the sum of the greatest negative root and lowest positive root ?
- ( cos(3A )- cos(A ))/( (sin(3A ))+ sin(A )) equivalent to?
- Express sin(150)deg in terms of ratios of acute angles and hence find the value?
- Exact value of sin (2x) if tan(x)=-1/5?
- Solve #12sin^2x+7cosx-13=0# for the range #360^o<=x<=540^o#?
- Prove tan(s+t) tan(s-t) = tan^2s-tan^2t/1-tan^2s tan^2t?
- Please help me understand how to solve this problem with steps? Find all solutions in the interval [0,360°) 10cos^2 x+13 cos x+4= 0
- 4sin(x)cos(x) = 1 ?
- How do you simplify cos^3(x) + sin^2(x) cos(x)?
- Sin2x - sinx = 0?
- How to simplify cos(5x) cos(2x) + sin(5x) sin(2x)?
- In triangle ABC , if the sides are a=3, b =5 and c = 4, then sinB/2 +cosB/2 ?
- Prove 1+tan^2x/1-tan^2x=sec^2x ?
- Find the domain of function f and its inverse function f^(-1)? f(x)=5cotx-4
- How do you get the exact value of this trig function without a calculator?
- Tan^2x+cotx=>2 Is it true?
- How to solve this? thx
- How to solve this?
- Prove that? : 1+sin2A+cos2A÷1+sin2A-cos2A=cotA
- 2tan(18)+ 3sec(18)-4cos(18)=?
- How do you prove this identity?
- How do I solve for the degree for sin A= 0.5? I am not quite sure what I am supposed to do.
- A rally car drives #85km# along a road from #A# and #B#, on a bearing #029degreesT#. The car then travels #58km# along a road to #C# on a bearing #153degreesT#?
- If tanA = t, find sec A in terms of t?
- Sin9A + sin5A?
- How do you solve sin(2x)+sin(3x)+sin(4x)=0?
- Express the following as functions of angles less than 45°: ii) cosec (-7498°)?
- Find the value of coth x if 3coshx - sinh x = 3 ?
- How do you prove #sinxsecx(cosx+cscx/ sec ^2 x) =sinx+cosx#?
- Tan150 degree =?
- A ladder 36' long rests against a wall, its foot being at a horizontal distance of 25' from the base of the wall. What angle does the ladder make with the ground?
- How do I find the exact solution of 2sin^2 x +sin x - 1 in the interval [0, 2 pi)?
- Prove that :- #(secA-1)/(secA+1)=(sinA/(1+cosA))^2# ?
- Cos(20°)cos(40°)cos(80°) = ?
- If sin t=cos t then value of t is???
- Determine the exact value of : #cos(tan^-1(4/3)+tan^-1(3/7))# ?
- #[1+(1+x)^(1/2)]tanx = 1+(1-x)^(1/2) then sin 4x = #?
- #sin(x+pi/4)-cos(x)=0#?
- #asin(A/2+B)=sin(A/2)(b+c)# how will you prove this for #DeltaABC# ?
- How can you prove csc^(4)x-cot^(4)x=2csc^(2)x-1 ?
- If #cos(x)cos(x-60°)=1-(n/6)#, so n = ?
- 4cosx cos2x cos3x - 2cos4x =1? General solution of trigonometric equations
- How do you solve #4\sin ^ { 2} 3x - 1= 0#?
- How do you convert only with just degrees and seconds?
- Verify tanx - cotx = (tanx-1)*(cotx+1)?
- I tried to prove this, but I couldn't anyone can help me please?
- If #tan^2x - 5tanx + 1= 0# then find #tan^2x + cot^2x#?
- 540/13 degrees into degrees, minutes and seconds?
- Can anybody help me to solve this?
- #tanx = b/a# then #[(a+b)/(a-b)]^(1/2) + [(a-b)/(a+b)]^(1/2) =#?
- #cot theta /( 1 + tan theta) =(cottheta -1)/ (2-sec^2 theta)# ?
- How do you solve for x in 2sinx-cosx=3/sqrt2?
- #(1+1/tan^2A)(1+1/cot^2A)= 1/(sin^2A-sin^4A)#. ?
- Sinx-cosx=1 ,0 ,2Π ?
- How do we solve for theta ? (Tan(theta -13))/2 = 0 ?
- How do you solve sin35cos100+ cos35sin100 ?
- How do you verify sin (x + pi/3 ) + sin (x + 2pi/3 ) = root 3 cos x ?
- How do you solve for x in 4cos^2x-5sinxcosx-6=0?
- How do you solve #2\sin x - \cos x = \frac { 3} { \sqrt { 2} }#?
- How do you solve for x in sin2xcos2x-cos2x+sin2x=1?
- #1/costheta+3sinthetatantheta+4=0# can be expressed as #3cos^2theta - 4costheta -4=0#. Hence solve the equation #1/costheta+3sinthetatantheta+4=0# for #0<=theta<=360# ?
- How do you solve sin^2 = 2cosx - 2 algebraically?
- Can someone help me with answering this question?
- How do I solve 3#sec^2#x = 4tanx + 7 ?
- How do you verify the equation (secx + tanx) cosx -1 = sinx is true for x = pi/3 Also how do you prove it algebraically?
- Can someone help me with answering this question?
- Find a simplified expression for tan(sin^-1(A/2))?
- Solving this triangle using appropriate Law of Sine?
- How do I find #x#: #2 sin x cos x-1=cos2x#?
- How do you simplify with trigo identities #(sinx)/(2tanxsec^2x)# so it can result #1/2cos^3x# ?
- How do I write the sin equation of: 1. Amplitude = 7 2. Period = 2pi 3. Phase shift = -pi/2 4. Midline y = -3. ?
- How do you show that inverse tan (1/x) = #pi/2-theta#, given that x is a positive number and #theta# = inverse tanx?
- How do I simplify Identities like this one?
- How do you solve for x in 2tan^2(3x)-sec(3x)=1?
- How do you simplify #\frac { \cos 11^ { \circ } - \sin 11^ { \circ } } { \cos 11^ { \circ } + \sin 11^ { \circ } } #?
- Find the exact value of sin 15 degree?
- How do yo prove that #(1- \sin ^ { 2} \theta ) \csc ^ { 2} \theta = \cot ^ { 2} \theta#?
- How do you simplify #\frac { 1+ \tan ( 2\theta - 45) } { 1- \tan ( 2\theta - 45) }#?
- How can i prove that sec^2(theta)+ csc^2(theta) = sec^2(theta) csc^2(theta)?
- #Sin(pi/9)*sin((2pi)/9)*sin((4pi)/9)=sqrt(3)/8# How do i prove this? Thanks
- How do I find the exact value of #cos ((5pi)/4)+cot((5pi)/3)#?
- If G,D and C are grade, degree and radian of an angle respectively, prove that #(G-D)pi=20C# ?
- Cos35×tan35×cosec55×cot55=1?
- Convert -32°30' into radian measure?
- #tan^ - 1(( 1- x )/( 1+ x ) )= 1/ 2 sin^ - 1( x /( sqrt ( 1+ x ^ 2) ) )#?
- The value of sin theta in the term of tan theta is=?
- How do you solve: #2cos^2(x) - sin(x) = -1# algebraically?
- Sin(a+b)sin(a-b)+sin(b-c)sin(b+c)+sin(c-a)sin(c+a)=0?
- Cosx+1= sinx?
- I'm having trouble understanding how to solve trigonometric equations. How do I go about solving this/ problems like it? #2sin(x/2) = sin(x)# on the interval #[0,pi]#
- Prove that cos 510 cos 330 + sin 390 cos 120 =-1?
- How to express sin 2x sin 5x as a sum or difference of sines or cosines?
- What is the exact value of tan(tan^-1.x)?
- How to simplify csc x - cot x to a single fraction in sin x and cos x?
- Can you find the missing angle using SOH CAH TOA?
- Find the value of cos a/2 and sin a/2. Given sin a = 0.75 ?
- Prove?: 1-sin^(2)x=cot^(2)x-csc^(2)x*cos^(4)x
- What's the value to: cos * 5π/12 ?
- Prove and fill in the blank?
- If sin(x)= -20/29 and x is in quadrant 3, find the exact values of the expressions without solving for x. (a) sin(x/2) (b) cos(x/2) (c) tan(x/2) ?
- Prove?: -tanxtany(cotx- coty) = tanx - tany
- Find #sin(A/2)#?
- The value of cos 75 + cos 15/sin 75 - sin 15 ? Thanks
- How do you prove ((sinxcosx)/cos^2x-sin^2))=((tanx)/(1-tan^2x))?
- Find sin theta and cos theta if cos2theta = 2/3 and 90 < theta < 180?
- How do you verify 2cos^2(x/2)=sin^2(x)/1-cos(x)?
- (sin(x)+tan(x))/tan(csc(x)+cot(x)) express as a single trigonometric function?
- How do you verify #sec^4x-sec^2x=tan^4x+tan^2x#?
- 45 degree to radian in a fraction?
- #(sec(x) + csc(x))/(1+ tan(x))# express in one trigonometric function?
- 2tanx-1=0 Find x?
- How to find the value of sin (195°)?
- Proving Trigonometric Identities?
- #Sin((2pi)/7)+sin((4pi)/7)+sin((8pi)/7)=# ?
- Prove that: #cot^2 theta +1 = cot theta/(cos theta.sin theta)# ?
- How do I prove that #(1-cos(theta))(1+sec(theta))=sin^2(theta)#?
- Verify the identity? cos (pi/2 +x-y)=cos x sin y-sin x cos y
- If #0<= aplha,beta <= 90# and #tan(alpha+beta)=3# and #tan(alpha-beta)=2# then value of #sin(2alpha)# is?
- Find all solutions to the nearest tenth of a degree?
- How do you simplify #\tan (\cos ^{-1}(-\frac{\sqrt{3}}{2}))#?
- How do you find cos(−5π/6) radians?
- Show the identity? cos u cos (u+v)+sin u sin (u+v)=cos v
- Suppose you are told that tan−1 A = B. Which of these statements is necessarily true? a. tan A = tan B b. tan B = A c. tan A = B d. tan−1B = A
- Solve #cos(cos(cos(x)))=sin(sin(sin(x)))# ?
- Sec(sin^-1(-1/5)) Give value?
- If #sin(x)= 2/3# and #0^@ < x < 90^@#, find #cos(x)# ?
- What is the formula for #cos^2(C)-cos^2(D)#?
- How can i prove this equation? c o s x − s i n y ÷ c o s y − s i n x = c o s y + s i n x ÷ c o s x + s i n y
- Csc^4x-cot^4x=2csc^2x-1?
- Verify the identity? cos(x+y)/cos (x-y)=cot x cot y-1/cot x cot y+1
- A radio mast is supported by two wires on opposite sides. On the ground the ends of the wires are 60.0m apart. One wire makes a 62° angle with the ground, and the other makes a 75° angle with the ground. How long are the wires & how tall the is the mast?
- How do you prove #(cos(x+h)-cos(x))/h=cos(x)((cos(h)-1)/h)-sin(x)(sin(h)/h)#?
- What are the exact solutions in radians, to the following equation that lie in the interval [0, 2π )? sin2 x = cos x + 1
- Tan^-1(sec(x)-1)/tan(x)=?
- #(1+cot(x))/(sin(x)+cos(x))# the directions say to express the answer in terms of sin?
- How do you simplify ? 1+tan^2(x)=1/cos^2 (x) And 1/sin^2 (x) -1=cot^2 (x)
- What's equivalent to = cos theta/1 - sin^2 theta?
- A function f is defined by f(x) 5-2sin2x For 0<x<pie a)find the .range of f. b)sketch the graph of y=f (x)?
- How do you simplify 1/(cscx+1)-1/(cscx-1)?
- Find cos A/2?
- Simplify [3(cos pi/4+i sin pi/4 )]^16 ?
- Solve the eqn. Sin^3xcosx+sin^2xcos^2x+sinxcos^3x=1 What is the number of solutions?
- Evaluate 3sin30-4cos cube60?
- If alpha and beta are the acute angles and cos 2 alpha=3 cos 2 beta-1/3-cos 2 beta show that tan alpha=2^1/2 tan beta ?
- Show work as how to add the following please. 2(pi)/3+2(pi)(-2) How does the answer -10(pi)/3 come about?
- How find tan(570)?
- Find cot theta if cos theta=4/5 and sin theta < 0?
- Find #cos[tan^-1(5/12)-cot^-1(4/3)]# Find the value?
- Y=cos^-1(-#sqrt(3/2)# Find the exact value of y?
- How to state the equivalent expression for cosxtanx?
- How to solve sinx cosx tanx= 1- cos^2x ?
- How do I find the exact value of tan(19pi/12)?
- How do you evaluate #4+\tan ^{2}x-\frac{4}{\cot x}+\sin x\csc x#?
- What is the value of CSC r when Hypotenuse is 3 and adjacent is √3?
- What are the similarities and differences between right triangle trigonometry and unit circle trigonometry?
- Cot x/2=-k then tan x=?
- If #0>=\theta>=22/28# such that #(cos^2\theta -sin^2\theta)=a# and #cos\theta - sin\theta =b# find a relation between #a# and #b#?
- Is csc x +cot x=cot x/2?
- Sin(cos^-1 2) = ? Solve using a triangle.
- Tan(x/2)cos^2(x)-tan(x/2) = sin(x)/sec(x)-sin(x) Verify?
- Sec(θ) tan(θ) − cos(θ) cot(θ) = sin(θ) solve it by factoring?
- If tan a = 4/3, tan b = 7 and tan(a + b) = -1 Without evaluating a or b how do you find sin(a) and sin(b)?
- Find the exact value of #sin (θ/2)# if #sin θ = 1/3# and #90° < θ < 180°# ?
- 2 cos x/3− 2= 0 solve?
- How do I solve this system for a and b? (I was given the hint to use sin x and cos x as constants.) a cos x + b sin x = 0 -a sin x +b cos x = tan x
- How do you solve 4sin^2x=1+4cosx at the interval of (0,360)?
- In studying the interference of light waves, the identity #sin(x)sin[(3/2)x]/sin[(1/2)x] = sin(x) + sin(2x) # is used. Prove this identity?
- 2 sin x + csc x = 0?
- Find the exact value of the six trigonometric functions for x if #sin(pi/2-x)= -3/5# What are the exact values?
- Verify: 2Arctan 1/2 = Arctan 4/3 ?
- Sin^2(x) = 3 cos^2(x)?
- Two acute angles a and b are such that tan a = 4/3 and tan (a + b) = -1 Without evaluating a or b. how do you show that tan b = 7?
- How can I rewrite 8 cos 4x in terms of cos x? If you could give a detailed explanation, that would be great!
- Sin(x + π) − sin x + 2= 0 solve?
- 1+1/sin(alpha) =4 the range is for alpha is from 0 to 360 find alpha???
- Solve for theta in radians?
- Simplify #cscx / cotx#. Use algebra and the fundamental trigonometric identities? Your answer should be a number or use a single trigonometric function
- Why is #cosx=secx# an inconsistent equation?
- Choose the graph of y = 2 arcsin x?
- if tanhx = 3/5 Then x=?
- All solutions between [0-2pi) sinx-1=cosx?
- Sinx * cotx + cosx / 1 - sin^2x = 2secx?
- Solve for theta?
- How to prove this identity?
- How do you prove this proof? #(sin^3x-cos^3x)/(sinx+cosx)=(csc^2x-cotx-2cos^2x)/(1-cot^2x)#
- The minimum value of # 1+8 sin^2x^2cos^2x^2 #is?
- What is the sec^2 (pi)?
- Solve for the trig function sqrt of 36-x^2 where o< theta< pi/2 and x=6 cos theta?
- How do you verify #(tanx + coty) / (tanxcoty) = tany + cotx#?
- Solve the following equations over the indicated interval? 2sin(x)+1=0, where -infinity < x < infinity cos(x)+sec(x)=-2, where 0 < x < 2pi
- Prove the following?
- Prove the following?
- #tan^2x=3secx+5?
- #−2cos(2x)+19cos(x)−14=0# Use trigonometric identities, algebraic methods, and inverse trigonometric functions, as necessary, to solve the following trigonometric equation on the interval [0,2π) . Round your answer to four decimal places, if ne?
- How do you find sin(16x) and cos(4x), if you know that cot(8x) = -2 and 8x is an element of II? Thank you in advance!
- Simplify each of the following using the trig identities. (sin^2x)+(sin^2x)(tan^2x)?
- 1/cotA(1-cotA)+1/tanA(1-tanA)?
- In a right angled isosceles triangle ABC, sin A+sin B+ sin C?
- What is the value of cot(-90)???
- If tanx+cotx=3 then the value of sec^2x+cosec^2x is?
- A 4-ft person standing near a telephone pole has a shadow of 3-ft long. At the same time, the telephone pole has a shadow of 18-ft long. what is the height of the telephone pole?
- How do you solve this trigonometric equation?
- What are all radian solutions to tan(x+pi/6)=-√3?
- When sinx =1 ?
- Find all solutions to the equation 6cos(x+2)=0 in interval 0<x<2pi ?
- Use double-angle or half-angle formula to simplify #(2-csc^2(x))/(csc^2(x))# ?
- Cos(theta)/sec(theta)?
- Can you please verify this?
- Find an equivalent rectangular equation to the given polar equation, then graph the equation? r=6sinx
- If #(1-cot4°)(1-cot5°)(1-cot6°).......(1-cot41°)=2^p#, then the value of p is?
- If #sinx+cosx=√2# then find #tan^nx+cot^nx#=?
- Use a product-to-sum identity to rewrite the expression cos 40° cos 20° ?
- How do you solve this equation cos4x(cosx-1)=0?
- How do I solve this in radians?
- Verify that #sin(x) + (cot^2x/cscx) = cscx# ?
- How to calculate sin from an angle?
- What is Cos(x/2) if cscx= -11?
- How do you simplify cos^2x+cos^2xcot^2x?
- How to do this one?
- How do you find the shaded region in the graph when given the equation for two lines that intersect? The equations of the 2 lines given are y=4sin(X) and y= 4cos(x)
- How do you solve b=16 cos(30 degrees)?
- #tan(57^@)=(sqrt3cos(3^@)-sin(3^@))/(cos(3^@)+sqrt3sin(3^@))=(sin(12^@)+cos(12^@))/(cos(12^@)-sin(12^@))# ?
- Can you please verify this?
- Cos theta= 4/5 and 0<theta<pi/2 find sin 2theta ?
- Xsin(90-theta)cos(90-theta)=cos(90-theta)then value of x?
- (sin π÷9)(4+sec π÷9) ??
- How do i find the exact value of #sin33cos27 + cos33sin27#? :/ without using calculator.
- Write the trigonometric expression as an algebraic expression. sin(arcsin 4x + arccos x)?
- Simplify the following? #sec^2x(cot^2x- cos^2x)#
- How do you solve (4sin theta cos theta)(1-2sin^2 theta) = sin(4 theta) ?
- Prove the identity (1-tan^2x)/(1+tan^2x) is same as 1-2sin^2x?
- How do you simplify the equation #1+sin(2x)#?
- Solve sin(5x)cos(7x)−cos(5x)sin(7x)=−0.55 how do i solve for the smallest positive solution?
- How do you find the value of #theta = sec^-1 (0)#?
- If #sin theta = 21/29#, what is #cos theta# and #tan theta#?
- The function f is such thatfx)a-bcosx for 0<x<360, where a and b are positive constants .the maximum value of fx is 10 and minimum is-2 find a and b?
- Prove that #sec(x)/sin(x) - csc(x)/sec(x) = tan(x)# is an identity?
- What is sine180 deegres?
- #tan^-1([sqrt{1+x^2}-sqrt{1-x^2}]/ [sqrt{1+x^2}+sqrt{1-x^2}])=x#, solve for #x#?
- Right triangle ACB has side lengths c = 17 inches and a = 8 inches?
- How to solve Cos(x+y) + cos(x-y) / cosxsiny = 2coty?
- How #sin(x+pi/6)=sin(x)/2# ? ( X is small )
- Prove that#( cot^2A+1)/(cot^2A-1)=sec2A#?
- Solve the equation #sin(2x) +3cos(2x) = 0# ,for #0<x<180#?
- If sin30 and tan30 are given then how to find cos 30?
- If A is a number of degree and B is the number of grades of any angle, prove that: #B=A+(A/9)# ?
- How to prove this?
- How do you prove cot^2x * csc^2x - cot^2x = cot^4x ?
- How do you solve #\frac { \tan \theta - \tan 27^ { \circ } } { 1+ \tan \theta \tan 27^ { \circ } } = 1#?
- Find solutions in decimal form rounding to the nearest thousandth for #sec^2x+4tanx=2# in the interval [0,2pi) ?
- What are the solutions for #sec^2x+6tanx=6# in the interval [0,2pi) ??
- Prove that #(1+sin2A)/(1-sin2A)=tan^2(pi/4+A)#?
- How do you solve tan x + tan 3x = 0?
- Prove # (secX-tanX)/(secX+tanX) = 1-2secXtanX+2tan^2X#?
- Prove that: ((sinx^2)/(1+cotx))+((cosx^2)/(1+tanx))=1-cosxsinx Unsure of how to prove it?
- #(cos^2x-sin^2x)/(sin^4x-cos^4x)# simplify?
- Solve cos x = 0.45 over the domain 0<x<2pi ?
- How can I know that the inverses of trig functions are actually not functions at all?
- Can someone help me with this? Thanks!
- How do I prove that tantheta +1/tantheta = 1/sintheta costheta ?
- In the triangle ABC AB=12cm angle BAC=60 and ACB is 45 find the exact length of BC?
- Solve the equation tanx+1/tanx=1+3tanx For 0<x<180?
- How do you solve #6cos^2(x)+7cos(x)+2=0# in the interval [0,360) ??
- Can you please help me verify this?
- How to prove #1/(1−cosx)-cosx/(1+cosx)#= #secx#?
- √2+√2+2cos4x = 2cos4x ?
- Tan^2x-sin^2x prove it can be written as tan^2xsin^2x?
- Evaluate sin^2(pi/8)+sin^2(3pi/8)?
- Prove that #sin(pi/18)sin((5pi)/6)sin((5pi)/18)sin((7pi)/18)=1/16#?
- Prove that #{sin(theta)+sin(3theta)+sin(5theta)+sin(7theta)}/{cos(theta)+cos(3theta)+cos(5theta)+cos(7theta)}=tan(4theta)# ?
- 1-secx/secx = cosx-1 what is the verification?
- How to solve?
- [cot(a)-cosec(a)+1]/[cot(a)+cosec(a)-1]=?
- Cos x / cos x + sin x then + sin x / cos x - sin x = 1 / cos(2)x - sin(2)x I need to know how to get to the final answer but i don't know how? Thanks!
- An person in a lighthouse 350 ft above sea level observes two ships directly offshore. The angle of depression to the USS Mathematica is #4^\@# and the angle of depress to the USS Tigra is #\7.5^\@#. How far from the shoreline are the ships?
- Solve tan(2A) + sin A = 0 in the range (0,2pi)?
- How do you prove that #sin2x(1+tan2x(tanx))=tan2x#? Thank you!
- How to prove tan(x-y) - tan(y-x) = 2(tanx-tany)/1 + tanxtany ?
- How do you figure out #sin theta# #cos theta# = 0?
- Find the values of the indicated functions. Given tan theta = 1.437, find csc theta and sin theta?
- A triangle is defined by the three points: a=(7, 10), b=(9, 10), and c= (5, 6). How do I determine all three angles in the triangle (in radians)?
- How to find #f^-1(x)# for #f(x) = sin(x) + cos(x)#?
- What's equivalent to tan^2 theta +1 / tan^2 theta ?
- How do i prove that #2tan(x)/sin^2(x) = sec^2(x)#?
- How do I find the value of θ?
- Show that the equation 1+sinxtanx=5cosx can be expressed as 6cos^2-cosx-1=0?
- How do I verify this trig function?
- ||v|| = 4. ||w|| = 4. The angle between v and w is 2.1 radians. Given this information, calculate ||4v+2w|| and ||1v-3w||?
- How do I resolve this equation in order to x? Cos(x)^2=1
- Consider the three points: A=(9, 8), B=(7, 10), C=(10, 6). What is the angle between AB and AC?
- Been wasting hours trying to prove this problem. Anyone able to help? sin 4θ = cos θ(4 sin θ - 8 sin^3 θ) Thank you.
- How do you find the angle in radians between the vectors a = <sqrt(3), -1> and b = <0, 3>?
- What is Cot theta - tan theta ?
- If cos x=tan y cos y=tan z cos z=tan x Then find the value of sin x?
- Verify the identity? (tan^(2)x)/(secx-1)=1+(1)/(cosx)
- A man observes the angle of elevation to the Goodyear Blimp hovering over the SCG to be 30◦. Upon walking 1 km towards the cricket ground he sees the angle of elevation to the blimp is now 60◦. How much further must he walk to get to the test match?
- Solve tan2x=3?
- How do you simplify sin^4(a)-cos^4(a)+cos^2(a)?
- (sinx-cosx+1)/sinx+cosx-1=(cosx)/1-sinx)?
- Show that cos6x=cos2x(4cos^2x-3)?
- #1/cosalpha +(2 cos alpha) /(cos2alpha )=#? If #alpha =pi/7#
- Please help me verify this trig identity, I can't do it?
- How do you prove #sin^-1(tanh(x)) = tan^-1(sinh(x))#?
- A ladder of fixed length rests against a wall. It touches the wall at a height of 3 metres, and forms an angle of 60◦ to the horizontal. If the ladder were repositioned to form an angle of 75◦ to the horizontal, at what height does it touch the wall?
- Prove #1/(secx+1)#+#1/(secx-1)#=#(2"cosec"x)/(sec^2x)#?
- Find A and B if #sin2xcos3x=Asin5x+Bsinx#?
- How to solve this?
- What is the exact value of #cos (( 7\pi)/4)#?
- If tanhx=-7/25,then find the other five hyperbolic functions?
- Sin pi/4=1 or -1?
- How do you prove arcsin(tanhx) = arctan(sinhx)?
- I need help trying to Verify this identity. Can someone please help? Thank You #sin(x/2)sin(x)=cos(x/2)(1-cosx)#
- #tan (cos^-1(x)+tan^-1 (x))#=?
- How do you simplify quantity 1 minus cosine squared theta divided by sine squared theta?
- Find tan 82.5 degree using trigonometric identities ?
- How do you solve #cos^2 = sin^2# for 0< or equal to x < or equal to #pi# ?
- What are the cube roots of 4+4√3 i?
- (Cos^2x)(sec^2x) ?
- Solve #1/(tan2x-tanx)-1/(cot2x-cotx)=1#?
- Simplify into terms of sin and cos? (cos[x]+sec[x])^2
- 1- sin theeta equal ?
- Explain it #cos^2(π/11)+cos^2((2π)/11)+cos^2((3π)/11)+cos^2((4π)/11)+cos^2((5π)/11)#?
- Prove that Cotx-2cot2x=tanx ?
- #2sec^2A=x# value of #x#?
- How do you evaluate #3\tan x - 3\cot x = 0#?
- How do you simplify? #(Sin^2x)×(cot^2x+1)#
- #tan\theta=-1# Explain how to answer?
- How do you evaluate #\csc ( \cos ^ { - 1} ( \frac { - 7} { 25} ) ) #?
- Sinx=1/25 then what is the value of cosx?
- How to find exact values of circular functions?
- Proof of tan4 theta ?
- Prove that #(sin2x+sin4x)/(1+cos2x+cos4x)=tan2x#?
- Csc^2x -cosxsecx=cot^2x verify eqation is idenity?
- Is the answer for this sum and difference problem correct?
- Solve #cos2A=sqrt(2)(cosA-sinA)#?
- Sin (pi/3+pi/4) ???
- If cosθ = 4/5 0 ≤ θ ≤ π/2 Find the exact value of a) sin2θ b) sin4θ Anyone able to help?
- #sec(theta)-sin(theta)tan(theta)#?
- Question related to radians. Read the details, please?
- Tan θ = 1/2, sin(x+θ) = 0, 1+sin2x = ?
- How do I solve for x using trig identities?
- If #A+B+C+D=2pi# then prove that #cos^2(A/2)+cos^2(B/2)+cos^2(C/2)+cos^2(D/2)=2-2cos((A+B)/2)*cos((A+C)/2)*cos((A+D)/2)#?
- How to solve for x in #x-sinx = pi/3#?
- Verify the identity tan^2 theta/sec theta=sin theta tan theta Can someone explain to me how to do this please?
- If #cosA+cosB+cosC=0# then prove that #cos3A+cos3B+cos3C=12cosAcosBcosC#?
- If #A+B+C=pi# then prove that #sin(B+2C)+sin(C+2A)+sin(A+2B)=4sin((B-C)/2)*sin((C-A)/2)*sin((A-B)/2)#?
- If #cosec^4 theta+cosec^2 theta=12+cot^2 theta+cot^4theta# then #6 cos^2 theta# is equal to?
- Verifying the Identity cot x/sec x= csc x - sin x Can someone explain this please?
- Can anyone help me verify the identity?
- How do you verify tanxcot^2x+tanx=(csc^2x)/(cotx)?
- How do you simplify #(1-cosx+sinx)/(1+cosx+sinx)# ?
- Simplify #(1-cosx+sinx)/(1+cosx+sinx)#?
- How do you simplify the expression?
- How do you prove this identity? Thx
- Prove the identity ((1/sinx)-(1/tanx))^2 =(1-cosx)/(1+cosx)?
- Find the general solution of cos4x=cos2x ?
- How do you prove this identity?
- Can someone please give a counterexample to disprove this?
- If x and y are the other angles of a right angled triangle, show that sin2x = sin2y?
- The greatest integer function question?
- Question 10 a and b how to do plz?
- How do you prove this? Thanks in advance!
- Simple proof of the formula(Is there a very easy to prove on a line? ... Technique?) : sin(A + B)=sin A cos B+cos A sin B
- True or false: cosu+cosv=cos(u+v), for all u and v ?
- How to find exact value of #tan(330)#?
- For this problem cosx * sinxtanx would this be cosx would I figure it out by doing this- cosx*sinx*tanx or would I do this_ (cosxsinx)(cosxtanx)? 8
- How do you determine all solutions to the given equation? cos^2t*sint - sint=0
- Prove the following identity?
- Prove the following identity ?
- If cos(x)=a, show then that sin(x-90)=ka where k is a constant to be found?
- How does -1/√3 = -√3/3?
- In triangle #ABC#, #AB = x#, #BC = 5" cm"#, #AC = (10-x)" cm"#, and #cos (angle ABC) = -1/7#. What is the value of #x#?
- How do you prove this? show work. (tanx+sinx)/(1+cosx)=tanx
- Prove (cosec theta-cot theta)=1-costheta/1+cos theta?
- How do you solve sec(θ) tan(θ) − cos(θ) cot(θ) = sin(θ) by factoring?
- Prove the following identity? cos2 θ = 1 + cos 2θ/2
- I need help finding sin(y-x) when sinx=2/3 and cosy=2/7 where pi/2 <_ x < pi and 0 <_ y < pi/2?
- A person on the earth is looking up at the sun, which is 92,900,000 miles away. The angle spanned by the sun at the person's eye is approximately 0.5 degrees. Find an estimate for the diameter of the sun?
- Why does 1/cos(x)-cos(x) equal to 1-cos squared(x)/cos(x)?
- If cos theta=2/7 and theta is in the first quadrant, evaluate tan theta?
- How do i use trig identities? cotx + tanx / cotx = sec^2x
- How do you verify this? Thanks in advance!
- How do solve this? cotx + tanx ------------------- = sec^2x cot x
- Need help with simplifying trig equations?
- Find Q, Q=(1/2)tan-1(4/3)?
- How to solve cos(t-pi) where cos(t)=3/4?
- What is the value of cotπ/20×cot3π/20×cot5π/20×cot7π/20×cot9π/20×cot15π/20 ?
- Given #sin(theta) = -1/5# and #tan(theta) > 0#, find #cos(theta)# (draw angle)?
- How do you prove the half angle identity #tan(θ/2) + cot(θ/2) = 2cscθ# ??
- Suppose θ is an angle in the fourth quadrant with cosθ=x/4. Find expressions for the other five trig functions in terms of x?
- Prove the following identity algebraically?
- What is the difference between degrees and radians on the calculator and why do they affect the answers?
- Prove that √1+sinx/1-sinx+ √1-sinx/1+sinx=2secx?
- Give your answer to 3 significant figures where they are not exact, in the interval indicated: 2(sin^2)x=3sinxcosx+2(cos^2)x ?
- Given that f(x)=8(sin^4)x-2(sin^2)x-2. How can you show that f(x)=cos4x-3cos2x?
- If secx=2,then find sin,tanx,cot x and codec A?
- How do you prove the half angle identity sec^2(x/2) = (csc^2x)(2-2cosx) ?
- What is meant by prove that #cos(290^@)= - cos(110^@)#?
- How to prove #sec^2(x)-csc^2(x)=(tan(x)-cot(x))/(sin(x)cos(x))#?
- Can u prove this trigonometric identity?. NOTE: X is theta.
- Solve the following equation exactly on the interval 0 ≤ θ ≤ 2π ? cos 2θ + sin θ = 0
- What is the radian value of angle 60°30'?
- Find cot 2x using double angle formula?
- How do you prove?
- What is the arcsin 0.45 radians? round to the nearest hundreths.
- If #A+B+C=pi# then prove that #sinA+sinB+sinC=4cos(A/2)*cos(B/2)*cos(C/2)#?
- Find the value of cos510(degree)?
- 15 cos A - 8 sin A = 0?
- How do you solve #4\sec ^{2}\Theta =5# ?
- A ladder of length 5cm has its top end at a point which is 1cm from the maximum height of a hourse directly above it. The lower end of the ladder makes an angle of 50degree with the ground.find the height of the house? Thanks!
- If acosx+bsinx=c, then find out tanx....tanx=?
- Prove that, # 1/(sinA + cosA) + 1/(cosA-sinA) = tan2AcscA #?
- Explain tan3atanA/tna3atanA{cot3a-cota}=tan3atanA/tan3A-tanA how?
- How do you evaluate?
- What is the probability of getting exactly 2 heads when 3 fair coins are tossed?
- How do you verify this identity?
- Why is this a cosine graph?
- How do you verify the identity sin(x)= 1/2sin(2x)sec(x) ?
- If cos(α)=4/5 and we know that α∈(270˚; 360˚), how much is cos(α/2)?
- What is the value of #\arcsin ( \sin ( 6) )#?
- What is (3i-7) in polar form?
- Given that f(x)=5(sin^2)x-3 (cos^2)x. How can you show that f(x)=1-4cos2x?
- Simplify: 24csc^2x – cot^2 x ?
- How do you verify #(tan^2x+1)(cos^2x-1) = -tan^2x#?
- Verify the identity. show your work. #cot^2(x) + csc^2(x) = 2csc^2(x) - 1# ?
- How do you solve cos(15)cos(60)-sin(15)sin(60) using exact values?
- Find all solutions of the following equation in the interval [0,2pi). cos x +1= 2 sin^2 x Could anyone help me out?
- How to prove this addition of sin/cos question?
- Cottheta-tantheta=2? solve
- Tan(t)= 3/tan(t) ?
- How do yo do this? cos^2x-sin^2x=1
- #Cos^2 60°sin^2 30°+tan^2 30°cot^2 60°=#?
- If A,B,C are the angles of a triangle then cosA+cosB+cosC=?
- What is (cosx)/(secx-1)? (Simplifying Trig Identities)
- Tanx=3/4, for pi <x< 3pi/2?
- Cos^2θ- sin^2θ=1+sinθ ?
- (secx-tanx)(1+sinx)=cosx?
- IF #P={x:sinx-cosx=sqrt2 cosx} and Q={x:sinx+cosx=sqrt2 sinx} # then show that P=Q?
- 5. Show that between any two real roots of e^x cosx =1, there exists at least one root of e^x sin x -1= 0.???
- Solve the equation on the interval [0,2pi) sin4x=sqrt3/2 ?
- Sin^2θ+sinθ=0 ?
- A man sat #30m# from a tree. The angle of his vision to the top of the tree is equal to #42°# Calculate the height of the tree. (assume that the level of vision of the man is on the ground)? Thanks!
- Prove #sin^2(x/2)=(sin^2x)/(2+sin2xcscx)#?
- But 120 is in 2nd quadrant then how can you say that it is in 3rd?
- What is the exact value for sin (-60)° ?
- (cosx)(tanx+sinx cosx)=sinx+cos^2x?
- Sin θ =tan θ solve the following equation for θ giving solutions in interval 0<θ<360?
- If " Sin2x + Sinx + Cosx = 1 " can someone prove that " SinX + CosX = 1 " ?
- Use identities to find the exact value of: sin (π/24) ?
- #csc theta-sin theta=a^3#and #sec theta-cos theta=b^3#then prove that #a^2*b^2(a^2+b^2)=1#?
- In triangle ABC, a=9, c=5, and angle B = 120 degrees. What is the measure of angle A to the nearest degree?
- Find the exact solutions to the equation sin(2x)=0.3 when 0≤x≤2π ?
- What is cos^2x-sin^2x?
- Verfiy the identity sinx(cscx + sinxsec^2x)= sec^2 x?
- Cosec x.cot x ?
- If #x = i㏒( sqrt(13)+ sqrt(12))# then, cos(x) is ?
- How do you simplify 1+cos(x)/1+csc(x)?
- 2-2cos^2θ=sinθ Solve the equation for θ giving solutions in interval 0<θ<360?
- In which of the following equations they have roots α and β?
- What will be the answer of sin^-1 {-(√3/2)}??
- How do you simplify tan x sin x csc^2 x cos x using reciprocal identities?
- Tan^2θ-2tanθ=1 Solve the equation for θ giving solutions in interval 0< θ<360?
- 2cos ( θ+30)°=1?find all values of theta 0<theta<360
- Find Sin2θ if θ is in the first quadrant and tanθ=40/9?
- Show that #(1)/((1+tan\theta )^(2))(1)/(cos^(2)\theta )=(1)/(1+sin2\theta )# ?
- Cot(-x)*sin(x)=??
- Sin2theta-underoot3 cos2theta=0 solve the following equation for θ giving solutions in interval 0<θ<360?
- Use DeMoivre's theorem find the indicated power and provide your answer in standard form, a+bi?
- I'm having problems understanding this. Help? Find #sin(x)# given that #cos(x)= 3/5# and #sin(x)<0#
- How do I verify #sin^2(x)cos^2(x)+cos^4(x)=cos^2(x)#?
- How do you derive the trigonometric sum and difference formulas for sin, cos, and tan? I.e: How do I derive something like sin(x+y)=sinxcosy+cosxsiny?
- Prove using the left side?
- How do you prove?
- The value of tan(50+x)-cot(40-x)?
- How can you do these types of problems quickly?
- How do I verify #(sec^2x-6tanx+7)/(sec^2x-5)=(tanx-4)/(tanx+2)#?
- A tree casts a shadow on the ground that is 29m long. From where the tip of the shadow lies on the ground, the angle between the ground and the top of the tree is 30 degrees. a) How tall is the tree? b) What is the distance from the tip of the shadow?
- If sin(58) = .848, determine an angle theta such that cos theta = .848. How do i solve this?
- Find the solutio of 4sin 4theta+1=root5?
- Given #sin(y) = -1/3#, #cos(x) = -2/5# with x in the 2nd Quadrant and y in the 3rd Quadrant, give the exact value of the following: a.) #sin(x+y)# b.) #cos(x-y)# c.) #tan(y/2)# d. #cos(2x)# ? Thank you :)
- PROVE THAT (secA+cosA)(secA-cosA)=tan^2A+sin^2A?
- What is the radian of 69° 49' 6"?
- PROVE THAT 1-sinA/I+sinA=(secA-tanA)^2?
- Prove tanA +1/tanA=secA*cosecA?
- Prove that cosA/i+sinA=1-sinA/cosA?
- How would you solve sin x=1/2 and x is member of [0,pi] or [pi/2,0] which is true for x?
- ¿How do you prove arcsinh(-x)=arcsinh(x), for all x in lR?
- Prove that ?
- How to use fundamental identities to simplify 9sinϕ (cscϕ-sinϕ) ?
- Solve it 4sin4theta+1=root5?
- #(cot theta - cos theta)/(cot theta + cos theta)= (2 - √3)/(2+√3)# and #0 < theta< 90°, #then the value of #theta# is?
- How to use fundamental identities to simplify 9sinβtanβ+9cosβ ?
- How to factor and simplify cot^2(x)+csc(x)-11 using fundamental indentities?
- How to factor and simplify the expression 4tan^2x-4tan^2xsin^2x using fundamental identities?
- Prove the identity?
- By using substitution t=tan x How do I prove sec 2x-tan 2x=tan (π/4 - x) ?
- 1. Prove the identity for an ABC Triangle ?
- 2.Prove the Authentication for an ABC Triangle ?
- Prove that #cos^3thetacos3 theta+sin^3thetasin3 theta=cos^3( 2theta)#?
- Cos{-(pi/2-x)}=?
- Prove the Authentication for an ABC Triangle ?
- Tan(x)sin(20)+sin(20)=2tan(x) X=?
- Prove the Authentication for an ABC Triangle ?
- How do you prove # (cosx-secx)^2 = tan^2x-sin^2x#?
- What's sin(4x)/sin(2x)?
- What is 2sin^2 theta + 1 = 0 for 0 to 360 degrees?
- How to prove #sin(arccos(x))=sqrt(1-x^2)# ?
- #(1+sin theta)/cos theta+cos theta/(1+sin theta)#?
- Solve for x if given cos(2sin^-1x)=7/9?
- Sec beta, if sin beta=- square root 2/3, with beta in quadrant 3?
- If #E= cos(π/9)×cos((2×π)/9)×cos((4π)/9)×cos(π/3)# calculate #2sin(π/9)×E #and deduce E?
- Given that tan(θ+15 degree)=√3, then the value of θ is?
- What's the answer to the Tan inverse (3/4)?
- Prove that #csc4A+csc8A=cot2A-cot8A#?
- How do you find the exact value of arcsin(1/3)? Or, rephrased, if sin(x)=(1/3), what is x equal to?
- How do you find a double angle formula for sec(2x), csc(2x), and cot(2x) ?
- How to verify sqrt(1+sinx) - sqrt(1-sinx) =2*sin(x/2)?
- How do you find Sum and Difference formula for cot(a±b) in terms of only cotangent?
- Use an appropriate half-angle identity to find the exact value of sin(pi/12) = ?
- Solve #11sin(theta)-2=2# for a value of #theta# when #0 <= theta <= pi/2#.?
- What are the exact values of the six trigonometric functions for -7pi/6 radians?
- Find both solutions between 0^0 and 360^0 of the equation sin theta =7/12 the first solution is theta =? the second solution is theta =?
- Prove that #(tanx+sinx)^(1/2)+ (tanx-sinx)^(1/2)= 2(tanx)^(1/2)cos(π/4-x/2)#?
- How do you prove csc x = tan ( π 2 − x )secx ?
- Please help?
- What is the polar coordinate for (-1 , √3) ?
- Please help?
- How do you turn cos(arcsinx-arctan2x) into an algebraic expression?
- How do you find the X-intercept of Tan^2(piex/6)-3?
- Show that sech^-1 = ln[(1+square root 1-X^2)/X] for X>0. Hence, solve sech^-1 X + lnX=ln3/2 ?
- Splittation of 4 tan theta ÷ 1- tan theta answer should be 2 tan 2 theta?
- What does it mean to square sine? Thank you. *(sin^2)*
- How can we calculate the value of sec(π÷3) on calculator?
- Find cos(x)?
- How do you evaluate #\sin ( 15^ { \circ } ) - \sin ( - 15^ { \circ } )#?
- How to prove this? (1+𝑠𝑖𝑛𝜃)/(1−𝑠𝑖𝑛𝜃)−(1−𝑠𝑖𝑛𝜃)/(1+𝑠𝑖𝑛𝜃)=4𝑠𝑖𝑛𝜃 〖𝑠𝑒𝑐〗^2 𝜃
- How to solve Q2?
- Given that 5sinh X + 4cosh X = R sinh (X+b), for R>0. Find R and tanh b?
- Prove that #cos^3Acos(3A)+sin^3A(sin3A)=cos^3 2A# ?
- Solve for X if given cos(2sin^-1 X)=7/9?
- Cos 2x = 2 cos x where x is between 0 to 360 degree in trigonometrics?
- How do you prove cos(π-a-b) = -cos(a+B)?
- If pi/2≤θ≤π and sin θ =4/5, find the exact value of cosθ and cotθ?
- Wyatt is 125 feet from a rock and sees a bird at an angle of elevation of 35°. The bird is directly above the rock. If the height of Wyatt's eye is 5 feet, what is the height of the bird?
- How do you verify this?
- How do you : solve the equation #sin(x)-2cos(2x)=1# for #0<=x<=360# ?
- Assume that 0<theta<pi. What is the value of theta in the following equation?
- If cosA=x/(y+z),cosB=y/(z+x),cosC=z/(x+y),show that tan^2A/2=tan^2B/2=tan^2C/2=1?
- How do I find the exact value of cot(-90) and csc(690) without using unit circle?
- Cos theta =3/5,(5cosec theta -4tan theta /sec theta +cot theta?
- Cos^2(15)-sin^2(15) ?
- If# cosx/a_1=(cos2x)/a_2=(cos3x)/a_3# then show that #sin^2(x/2)=(2a_2-a_1-a_3)/(4a_2)#?
- #cos alpha=x/(y+z), cos beta=y/(z+x), cos gamma=z/(x+y),#show that #tan^2 (alpha/2)+tan^2 (beta/2)+tan^2 (gamma/2)=1#?
- 1-cos2A/1+cos2A?
- A pole leans away from the sun at an angle of 7° to the vertical, as shown in Figure 27. When the elevation of the sun is 55°, the pole casts a shadow 42 feet long on the level ground. How long is the pole? Round the answer to the nearest tenth.
- Please Help???
- How to solve 2cos^(2)x-sinx=1 ?
- Solve in the interval #0^@#, #360^@# #2csc^2x + cotx = 10# How?
- Prove the following Identity? 1- cos5x cos3x - sin5x sin3x = 2sin^2x
- Prove the identity? 7cos^4x - 7sin^4x=7cos2x
- If A=170 degrees,prove that,tan A/2=(-1-root(1+tan^2A))/tanA?
- Sin 1/2p = 2/√5, tan p?
- Prove the identity step by step? sec x - sin x tan x = cos x
- How am I supposed to solve this using Trigonometric Equations in Degrees?
- Cos(x - 5pi/4 ) = ? sin(x - 3pi/4) = ? sin(x - pi/6) = ? cos(x - 3pi/2) = ?
- Find the exact value of cos (-pi/12)?
- How do you prove tan(x+(3pi/4)=(tanx-1)/(1+tanx) ?
- What is the Value of cotπ, cot2π?
- Please solve this?
- Minimum of f(x) = (x+1)/cos2x is ?
- How #cos^2 (pi /11) + cos^2((2 pi )/11 )+ cos^2 ((3 pi)/ 11) + cos^2(( 4 pi)/ 11) + cos^2(( 5 pi )/11) = 9 / 4#?
- How do you verify Sinx cosx/ (1+cosx)(1-cosx) =cotx ?
- If costheta+sintheta=1.prove that cos theta-sintheta=+-1?
- Cos square20°+cos squars70°=?
- If #[email protected]=(sqrt(5)-1)/4# and #[email protected]=(sqrt(5)+1)/4# then prove that #(1+cos(pi/10))(1+cos((3pi)/10))(1+cos((7pi)/10))(1+cos((9pi)/10))=(1/16)#?
- Solving trigonometric equations [0,2pi) tanx -2tanx • sinx = 0 ?
- Solving complex trigonometric equations for #[0,2pi], cos^2x - 3cosx -1 = 0#?
- If #cos(theta) = 4/7# of an acute right triangle, what are the other five trigonometric functions of #theta#?
- Is #csc(π/2+x)=sec x#?
- How do you verify cotx/tanxcos^2x = 1/sin^2x ?
- Draw a diagram and shiw the necessary calculation to prove why tan 30°=1/square root of 3?
- Prove that? (1+sinx)/cosx=cosx/(1-sinx) Cosx is not equal to 0
- Prove that #((cos(33^@))^2-(cos(57^@))^2)/((sin(10.5^@))^2-(sin(34.5^@))^2)= -sqrt2# ?
- Prove that (Cosec theta -cot theta)2=1-cos theta /1+cos theta?
- What is the estimated amount of Pi?
- Prove that #(cos(33^@)-cos(57^@))/(sin(10.5^@)-sin(34.5^@))=-sqrt(2)# ?
- If #xcos alpha+ysin alpha=xcos beta+ysin beta=k# then show that #x/cos ((alpha+beta)/2)=y/sin ((alpha+beta)/2)=k/cos ((alpha-beta)/2)#?
- If x1 and x2 satisfy: 2sin(x)+sec(x)-2tan(x)-1=0, then sin(x1+x2)?
- Given z=2cosθ+i(1-2sinθ) ,How to prove that the real part of #1/(z+2-i)# is a constant for -180<θ<180?
- How to solve cosx=-√2-√3 sinx ?
- 2cot theta = 0?
- Tan^2a=2tan^2b+1 is what? 1,2,-1,0
- How to solve r=2sec theta .... into rectangular coordinates ?
- How to prove that #(2sin(4theta)-sin(6theta)-sin(2theta))/(2sin(4theta)+sin(6theta)+sin(2theta)) = tan^2(theta)# ?
- If it is given that 3 cosec theta = 4 then verify that cosec^ theta - cot^ theta = 1 ?
- Find the value of 1-cosx in terms of Sin?
- Solve this please.I think this question has mistake.please find it?
- Sin^8(75°)-cos^8(75°) ?
- If tan(A + B) = −4 and tan B = 5/3. how do i find tan A?
- If sec(x)+tan(x)=2012, then 2011(csc(x)+cot(x))?
- What is cosine thita +cosine thita?
- How do you simplify 1/(1+#sqrt(7)) ?
- Solve the following equation on the interval [0,2pi)?cot^2(3x)+4cot(3x)-5=0
- Where does the π/14 and π/7 Lies??
- What is the value of (sin^2 20+cos^4 20)/(sin^4 20+ cos^2 20) ?
- How to solve: #2sin^2(x)-5cos(x)+1=0# ?
- Is true that sin(arccos(x))=arccos(sin(x))?
- Triangle "ROV" have R corner + V corner is 90 degree if tanR = 4root of 64 so:cotV /sinR+cosV = ?
- Hello, how to solve cos 2ϴ=0 between 0 and 2pi?
- How do you solve #\sin ( 2x ) - \cos ( 3x ) = 0#?
- Prove that 1+tan(2θ)tan(θ)=sec(θ) ?
- Write the given expression in terms of x and y only? tan(sin^−1(x) + cos^−1(y))
- How do i show that arcsin ((x-1)/(x+1)) = 2arctan(x^1/2)-π/2?
- CosA + secA =2, then cos^10A + sec^11A=?
- Proof that? (Cos^2)/(1-sinx) = 1 + sinx Sinx does not equal 1
- Solve #(sqrt(3)/cos(2A))-(1/sin(2A))=4# ?
- If cot theta +cos theta=p and cot theta -cos theta =q then write (p^2-q^2)^2 in terms of p and q.?
- Prove that? (1/cosx) - cosx = (sinx)(tanx)
- What are the amplitude, period, and midline of #f(x)=-7sin(4x-n)+27#?
- Do you Prove that cos(180-a)cos-a/ cos(180+a) cos(90+a)=cot^2a?
- How to solve cosA+cos2A+cos3A=0 ?
- Evaluate tan(-330)?
- Cos A/1-sin A = p, tan A/2 = ?
- What is the solution to 2cos^2x-2=0?
- What is the period of sine function?
- Help with circular functions question?
- What is the value of cosec3/5 ??
- Prove cos A+cos B/sin A-sin B = -tan(A-B)/2?
- Sin(45)=1/√2 THEN Sin(45)=√2/2 ? HOW ?
- Sin(45)=1/√2 Sin(45)=√2/2 ? HOW ?
- How do you verify 2sinx - sin2x / 2sinx + sin2x = tan^2 1/2 x ?
- Can you help me simplify this trig equation? sec 2 x ( sin 2 x − 1 ) sec 2 x ( sin 2 x − 1 )
- Verify trig identity? #Sinx/(1-cotx) - cosx/(tanx-1) = sinx + cosx#
- How do I find all the solutions for cos(x)tan(x)=tan(x) on one interval rotation of the unit circle?
- Find the value of ?
- Sin 4 theta/sin 2 theta - cos 4 theta/cos 2 theta = sec 2 theta ?? PROVE
- (2)/sin (A) = tan (A/2) + 1/ tan (A/2), how to prove?
- (sin A + cos A)^2 (sin A - cos A)^2 = 1- sin^2 (2A) ??
- Sin inverse 1 by root 5 + Cos inverse X is equal to 1. find x?
- How to solve 3 * sin x = 2*sin x * cos x ?
- How do you find sin, cos, tan?
- Prove that: #1/(cosec x-1 )+ 1/(cosec x+1) = 2sec x * tanx#, for all real numbers for which sin x * cos x is not equal to 0?
- How do i verify sinx(numerator) over 1+cosx(denominator) = 1-cosx(numerator) over sinx(denominator) ?
- How to solve cos(4x+pi/5)=cos2x ?
- Find #A+B# when #tanA+tanB=1# and #cosA*cosB=(3^(1/2))/2#.?
- Verify the identities?
- find the exact value of the expression: 12cos2(60∘)+6csc2(45∘)?
- How do you verify (sec(x)/cos(x))-tan^2(x)=1?
- Verify the identities ?
- If sinA=x then sin2A = ?
- How do i verify #sinx/(1+cosx) = (1-cosx)/sinx# ? Please show all the steps.
- Prove this. #sec^(4)x-tan^(2)x=tan^(4)x+sec^(2)x#? using only one side
- The value of Tan inverse(1/2 tan2A)+tan iverse (cot A)+tan inverse(cot cube A) for 0 less than A less than pi/4 is?
- If z = 2(#cospi/4+isinpi/4#), how do you write (-z) in mod-arg form?
- Assume that 0<𝜃<𝜋. Solve the following equation for ?
- How do l sketch the graph of y= -2sin (3x) please?
- (sinx+cosx)/(secx+cscx)=(sinx)/(secx)? prove this
- Prove this. sec^(4)x-tan^(2)x=tan^(4)x+sec^(2)x?
- (cos(theta)+sin(theta)/(cos(theta) )=1+tan(theta)? prove this.
- How do I find the exact value of cos(2sin^-1(12/13))?
- If sin(a+b)^2 = (sin(a) + sin(b))^2 than is cos(a+b) = cos(a) + cos(b), calculate a and b?
- What is the exact value of cot(-5pi/6) without using a calculator?
- I need help proving this identity 1-sin theta/sec theta = cos^3 theta/1+sin theta ?
- Cot/Csc^2-1=Tan ?
- Cot*Csc*Tan^2=Sec?
- Tan/Sec=Sin?
- Cos/1-sin^2=sec ?
- Csc/sec=cot?
- What is Sin(30°)?
- How to prove(2tan(1/2)y)/[1+tan^2 (1/2)y]=sin y?
- What is sinx times 1/x?
- #arcsin x# = arctan ( #1/2# ) - arctan (#1/3#) , the value of x?
- Prove that:?
- (Coshx+sinhx)^n=coshnx+sinhnx?
- Solve for x the equation square root x = arccos (0.317) + arcsin (0.317)?
- If a globe rotates through 150 degrees in 5 seconds how many rotations does it need to make in 30 seconds?
- What is the half of 3pi/2 ?
- Reduce to one trig identity. sec(x)+sin(x)tan(-x)=? I know it equals cos(x) but how?
- How do you solve this trigonometric equation? 1/cotx+√3(tanx)=0
- #cos(pi/2-2tan^-1(-1/2))=#?
- Prove the identity? Sec^4 (s) - tan^2 (s) = tan^4 (s) + sec^2 (s)
- If x+2=4sinx for 0<x<(pi/2), express cos(2x) in terms of x. Cos(2x)=?
- How do you solve the equation for x if 0 ≤ x < 2π. Give your answer in radians using exact values only. (Enter your answers as a comma-separated list.) ? 2 cos2 x − sin x − 1 = 0
- How can you prove that #cot(theta)cos(theta)csc(theta)= cot(theta)#?
- Prove it please?
- Please solve this ?
- How does the graph of #f(x) = 3cos (1/2 x) - 5 # differ from the graph of #g(x) = 3 cos(x) -5#?
- #cosh^2x-sinh^2x=1#?
- How to Prove sec x = (1-tan(x/2))/(1+tan(x/2)) ?
- If sin^4x = A + Bcos2x +Ccos4x, then what is A, B, and C equal to?
- Use a double-angle or half-angle formula to simplify the given expressions: 1. If cos^2(39degrees)-sin^2(39degrees) = cosA then what does A equal? 2. If cos^2(3x)-sin^2(3x) = cosB, what does B equal?
- How do i simplify this?
- How do you find the exact value of #cos ((10\pi)/3)#?
- If A is an angle of 3rd quadrant, then prove that (cosA/2 + sinA/2) is +ve?
- Find x. When sec^2(x)-2tan^2(x)=2/3?
- How is simplified #tan(45 + a)-1/(tan2a)# ?
- Calculate sin 2pi?
- Cos20-cos40-cos80=0 prove it?
- How do you verify #sin^4t + cos^4t = 3/4 + 1/4 cos4t# ?
- How do you verify 8cos10cos20cos40=cot10 ?
- (cos5π/4-cos5π/6)^2+(sin5π/4-sin5π/6)^2?
- How to convert 39°22'30" into radian measures plz help me out?
- How do you solve cos(2x+pi/6)=1/2 ?
- How do you solve (sin x)(2 sin x - 1) = 0 in the interval [0, 360 degrees)?
- Find the positive value of n satisfying ?
- From a point 63 feet from the base of a redwood tree, the angle of elevation to the top of the tree is 51.8 degrees, how do you find the height of the tree to the nearest foot?
- Prove that (sinx-2sin³x)/(2cos³x-cosx)=tanx ?
- How to solve the equation: #2cos6x + 2cos4x - sqrt(3) cosx = sin2x + sqrt(3)# ?
- The value of "x" that satisfies sec (x + 20°) = 2 ?
- prove that #sqrt((1+cos theta)/(1-cos theta))+sqrt(( 1-cos theta)/(1+cos theta))=2 cosec theta#?
- What is cos2x, given tan x = 3 and cos x < 0 ?
- If 0 < x < phi, prove that : sin x/2 = √((1-cos x)/2) ?
- Find the value of "x" that satisfies the equation : √3 sin 2x + cos 2x = √3 ; 0°<= x <= 90° ?
- #Sin^2x/(1+cosx )+ cosx = 1 #verify the identity?
- How do you verify tg^6x=tg^4xsec^2x-tg^2xsec^2x+sec^2x-1 ?
- How to solve cos (2x+3) = 30?
- (a) given that theta is an acute angle with sin theta = 17/41 find the exact value of cot theta (b) using the exact values for sine and cosine of both 3*pi/4 and pi/6 and the angle sum identity for sine, find the exact value of sin (11*pi/12)?
- #sec^2 (x) -sec (x) + tan^2 (x)# How do I factor that?
- #(Sin theta - cos theta +1)/(sin theta+ cos theta -1) =1 / (sec theta - tan theta)#?
- How To Solve? 2sin^2θ=3cosθ
- Value of cos4π ?
- simplify to one trigonometric expression?
- If #y = (1+cos 2x)/(1-cos 2x) #how can I prove that#( 1-cos 2X)^2# multiplied by firs derivatives plus #4 sin 2x# equal zero ?
- Find all solutions to the equation. 7 sin^2x - 14 sin x + 2 = -5?
- Find the numerical value of cosh(ln 5)?
- If sin(A) = 9/41 and sin(B) = 21/29, then cos(A - B) = and cos(A+B) = ???
- 1-sin theta divide cos theta is equal to 4 then find tan theta?
- If #cos (x) cos (x - pi/3) = 1 - n/6, then the boundary value "n" that meets is = ?
- How do you verify the identity (tan^(2)x+2tanx+1)/(sinxtanx+sinx)?
- How do you solve #2cos(x/3)-sqrt(2)=0# ?
- Why does the graph of y=(sin(x))/x cross the y axis at 1?
- If you divided the original identity, sin^2(x)+cos^2(x)=1 by tan^2(x) you'd get cos^2(x)+sin^2(x)=cot^2(x), which then turns into 1=cot^2(x); is this true?
- #1 = 3 + 4cos(θ)# ?
- Find all exact solutions on [0,2pi) sin 6x-sin 3x=0?
- Prove the following trigonometric identity? tan (x-y) / tan (x+y) = sin x cos x -sin y cos y / sin x cos x + sin y cos y
- simplify the first trigonometric expression by writing the simplified form in terms of the second expression? (sec x + cscx/1 + tan x) ; sin x
- How do you prove?
- Prove cos(x)+cos(2x)+cos(3x)=cos(2x)(1+2cos(x)) ?
- How to solve 3 cot^2 x + cosec x = 1 for 0 <= x <= 2pi ????
- Solve the following equation for 0 <= x <= 2π ? sin 3x - sin x = cos 2x
- 1) solve for 0 t0 2pi the following equations? cos 2x + cos 4x
- How to find solutions in 0 <= x <= 2pi for equation??? sin ( x + pi/3 ) = sin x
- How do you solve? #(4/3)^cosx=sinx#
- Find the solution in 0 to 2pi of sin 2x = 1 + cos 2x ??
- Let #E = √(1+sinA) + √(1-sinA).# If #0°<= A <= 90°# then find the find the value of E?
- D.r Black is standing 20 feet from a streetlamp. The lamp is making his shadow 5 feet long. He estimates that the angle of elevation from the tip of his shadow to the top of the streetlamp is 30°. How tall is the street lamp to the nearest foot?
- Eliminate x from the following equation ? (a) p = 3 tan x , q = 3 sec x (b) p = 1 + cos x , q = 1 - sin x (c) p = 2 sin x, q = 3 sec x
- Find sin 0 if tan0= 3/4 and cos0<0?
- How to prove (cos80°-cos40°)/sin40°=((√3)/2)sec20° ?
- Find the exact values of sin 2u, cos 2u, and tan 2u using the double-angle formulas.? tan u = 5/13, 0 < u < π/2
- Sec theta plus tan theta devided by sec theta minus tan is equal to 2+√3÷2-√3 then what is the value of sin theta?
- How would you convert this to DMS (degrees, minutes and seconds) without the middle number?
- How can I draw the reference triangle of sin(cos^-1(-4/5)=3/5 ?
- How do you solve #\cos ( x ) = \frac { 9.5} { 8\cdot 3}#?
- How do I simplify cos 45 + cos 15 ?
- If tan(A + B) = −3 and tan B = 2, find tan A. What is tan A= ?
- How do you solve for theta?
- How do you solve for theta?
- How do you solve for theta?
- Maximum value of sin^4x-cos^4x is ?
- What is #{sin10°+sin20°}/{cos10°+cos20°} =# ?
- Sin^6x multiply sin^2x???
- Cos(x+y) + cos(x-y) / sin(x-y) + sin(x+y) = cotx verify the identity?
- (sin(10°)+sin(20°)+sin(40°)+sin(50°))/(cos(10°)+cos(20°)+cos(40°)+cos(50°)) = ?
- Sin(pi/3+theta) - sin(pi/3-theta) = sin theta. verify the identity?
- #( sec θ + cos θ ) (sec θ - cos θ) = tan^2 θ + sin ^2 θ #?
- Use a double-angle formula to rewrite the expression? 10 cos2 x − 5
- Cot^2 x(tan^2 x+1)=csc^2 x verify the identity?
- How do I find the value of a and b if the angle at A is π/3?
- Solve 3 tan y = cot y giving your solutions in radians ?
- How to solve #4cos(x-pi/6)=3sin(x+pi/3)#?
- Cos^2(21°) − sin^2(21°) how to simplify this?
- If (sec a)(tan a)=1÷3 find cot a?
- If secant theta - tan theta = k, then find cot theta in terms of k?
- Solve (1+cosa)(1-cosa)(1+cotsquare)?
- If cos A=24/25 and cos B=3/5, find cos(A+B) and cos (A-B) given that both A and B are acute angles?
- #x=acostheta + bsintheta, y=bcostheta + asintheta# Eliminate theta?
- Is sin2α=2sinαcosα?
- How to prove that sin(22,5°)cos(22,5°)-cos^2(22,5°)=-(1/2) ?
- Find the polar coordinates, (r, θ), where θ is in degrees, for the rectangular coordinates (2, -2).?
- How to prove that cos (80°)+cos(40°)-cos(20°)=0 ?
- Tan theta /1-cot theta +cot theta /1-tan theta= 1+tan theta+cot theta... To prove.. Pls give me full and.... With solution pls..... ????
- (cos(80°)-cos(40°))/sin(40°) = ?
- Express cos3 𝜃 in terms of cos 𝜃 &cos 3𝜃?
- How to simplify a trig function of a single angle of: 5cos20cos5 - 5sin20sin5?
- How to verify? : csc x +sec x tan x/csc^2 x = tan x sec x
- Formula for sin(x) without using trig functions?
- Prove the identity #cos(4x)=1- 8cos^2(x) + 8cos^4(x)# ?
- #tan theta+ 4 cot theta =4#. What is the value of #tan^3 theta+ cot^3theta#?
- Prove cosec (x)- sin (x) / cosec x = cos^2 (x)?
- How to solve tan(x+60)=1?
- For two different value of #theta#, #theta_1# and #theta_2#(where the value of #theta#s are between #0 and 2pi#), the equation #sin(theta+phi)=1/2sin2phi# is followed. Prove that #(sin(theta_1)+sin(theta_2)) /(costheta_1+costheta_2) =cotphi#?
- Write the first trigonometric expression in terms of the second expression. tan(x); sec(x) ??
- Solve #4sin^2(x) -3 = 0# for #[0,2pi)#????
- Simplify the expression as much as possible. cot(x)cos(x)+csc(x)sin^2(x)=?
- Why quadrants count like Q1,Q2,Q3,Q4 in anticlockwise direction?
- Find the answer?
- How do you find the domain and range of inverse cos(e^x)?
- What is the exact value of sec pi/6 ?
- How can resolve this identity #( Cosx(cosx-sinx))/(1-2sinx*cosx)=cosx/(cosx-sinx)# ?
- #Sin(40°)+cos(50°)+sin(80°)-cos(190°) =# ?
- 1 + sin u/ cosu + cosu/1+sinu how do you simplify this?
- (sec θ + tan θ)(sec θ − tan θ) = 1 ???
- Find all solutions #sin(3theta)=-1#?
- How does one solve this trigonometry equation? #0 = 2-cos^2θ+ 3sin^2θ+4sinθ#
- How to: cos(v)+i*sin(v) lies on the unit circle with the equation x^2+y^2=1?
- How do you find the angle θ in standard position that corresponds to the bearing South 30 degrees East for a plane flying at 540 miles per hour?
- How to change the form: cos(3x-30°)+cos(3x+60°) into the form: k cos(x-theta)?
- In any triangle ABC if the angles A,C,B are in A.P. then prove that #2 cos ((A-B)/2)# = #(a+b) / sqrt (a^2 - ab + b^2) # ?
- Definition of one cycle of a sine wave?
- Tan^2x-sin^2x / tanx-sinx =5/13 + tanx So: sin^2x-cos^2x =?
- How do I compare #sin 1^@# and #sin1#?
- How can you prove # a^3 cos (B-C) + b^3 cos (C-A) + c^3 cos (A-B) = 3 abc# ?
- If cos(x)=a, then cos(−x)=−a?
- Whats false about the identity cscx/cotx = secx?
- Prove that....? #1/(cscA-cotA) - 1/sinA = 1/sinA - 1/(cscA+cotA)#
- How do you prove 1/1-sin^2=1+tan^2x?
- Trigonometry Question?
- The number of Solutions in #[0,2pi]# such that #(Sin (2x))^4 = 1/8# is?
- How do you prove? 1-sin2x*sin2y=sin^2(x-y)+cos^2(x+y)
- The moon's distance from the earth is 360000km and its diameter subtends an angle of 42' at the eye of the observer.The diameter of the moon is?
- How can you prove (#b^2 - c^2#) cot A + (#c^2 - a^2#) cot B + (#a^2 - b^2#) cot C =0 where ABC is a triangle and a. b, c are the sides ?
- What is the value of #sin^2(-theta) + cos^2theta#?
- What is the answer.? Help please.
- Secx (1-sinx )(Secx+tanx)=1?
- Prove that #2sec^2theta-sec^4theta-2cosec^2theta+cosec^4theta=cot^4theta-tan^4theta#?
- In any triangle ABC , if (sin A + cos A) / cos B = #sqrt2# prove that C = 135 Degree?
- Show that cot theta plus tan theta is equal to sec theta into cosec theta ?
- If 3sin theta+4cos theta=5, Then find 4sin theta -3cos theta?
- Sin2x-cos2x-sinx+cosx-1=0 if 0<=x<=2pi?
- Solve #cos^2x-sin^2x=sinx+1# ?
- Given that #sin(b)=-2/3#, and that #b# is in the third quadrant, what is the value of #tan(2b)#..?
- How do you solve the equation cos(2x) =#sqrt(3)#cos(x) on the interval [0,2Pi)?
- How do you solve the equation sin(x)tan(x)+#sqrt(2)#sin(x)=0 and find all solutions in the interval [0,360degrees)?
- If cos α = √2/3, α∈ IV quadrant . Calculate cos( α+60º), please?
- If #5*sinA = 3# , then what is the value of #tanA#?
- Is -3 pi the same as 2 pi?
- 4I°Cos²π/2?
- What is the value of #(sin^2A+sinA)^2+(sin^2A-sinA)^2#?
- Trigonometric Functions Question (Area underneath a curve). Help please?
- How to solve #cos (180-theta)# given that the angle #0 < theta < 90# and that #sin theta = .22# and #cos theta = .98#?
- #Tan(theta)=4# find #cos(theta)#?
- Simplify 2 sin(x)tan(x) + 2 cos(x) ?
- Sin36.sin72.sin108.sin144=?
- How to prove that this is true?
- How do you prove #sin^2x(1+sec^2x)=sec^2x-cos^2x# ?
- How do you prove #2+tan^2x+cot^2x=sec^2xcsc^2x#?
- prove # tan2x=1/(1-tanx)-1/(1+tanx)#?
- For f(x) = 4 - 3x^2, f(2a) equals?
- Without using the unit circle, how would I know what angle #tanx-1=0# represents?
- Can't change #tan^2x=sec^2x+5# into a pair of solutions?
- What is the proof for tan(x-(π/2))= -cot x?
- How to prove that this is true #(cos theta - sin theta )^2 + 2 sin theta cos theta =1# ?
- How to if two trig ratios are the same?
- How to verify tan2xcos2x/sinx = 2cosx?
- How? #1/(cosx(1 + cosx)) = (tanx - sinx)/(sin(3x))#
- Simplify the following equation and choose the right answer? Equation: sin5x cos3x-cos5x sin3x
- Hi I have a question regarding inverse functions. For which k is the equation solvable? And how can I write the solution without any arcusfunctions? arcsinx+arcsink=pi/2 I would be really appreciate any help.
- How do you prove #(1 + sinx + cosx) / (1 + sinx - cosx) = (1 +cosx) / sinx# ?
- How do I write an algebraic expression that is equivalent to #arccos(sin(x/2))#?
- Cos10°.cos20°.cos40°=?
- If #A+B+C =180^@#, prove that #cot^2 A + cot^2 B +cot^2 C >= 1# ?
- Express the following angles as multiples of Pi radians. Answer please?
- Please help me?
- #(2(sin 2x +2 cos²x-1))/(cos x -sinx -cos3x+sin3x)# is equal to cosec x plz prove?
- Give 0<theta<pi/2 If 9cot^2theta=18cosec(theta)-14 So sin(theta)+cos(theta)+tan(theta)?
- 120°angle find sin cos and tan thanks?
- How do you find tan(-120)?
- When solving #tan^2 (x)+tan(x)-20=0# what are all solutions of the equation within the interval of [0, 2π)?
- How to solve this?
- Give cosA+cosB=x, sinA+sinB=y If x^2+y^2=1 So 2cos(A-B)=?
- How can resolve this identity 1+sec^2*tan^2 - sec^4-tan^4=0?
- How to simplify?
- If cos x = - cos(pi/6) and pi/2<x<pi, what is the value of x?
- #( tanπ+secπ-1)/(tanπ-secπ+1) =(1+sinπ)/cosπ# Prove that?
- #(sinA+cosecA)^2+(cosA+secA)^2=tan^2A+cot^2A+7# Prove that?
- How can resolve this identity #1+2sec^2(x)*tan^2(x)-sec^4(x)-tan^4(x)=0# ?
- Solve for x. 2tanx-sinx-1=0?
- #2sin^2theta+3costheta=0# So what is quadrant of theta?
- If (((sin x)^4)/((sin y)^2)) + (((cos x)^4)/((cos y)^2))=1 then how to prove (((sin y)^4)/((sin x)^2)) + (((cos y)^4)/((cos x)^2))=1?
- If #tan A = 3/5#, so #(2(sinA-pi)+3cos(pi+A))/(5sin(-pi)-4cos(-2pi-A))#?
- #cot^2x/(1+cosecx)=(1-sinx)/sinx#?
- How to find the angle of elevation of the kite?
- How do I prove Cot^2x-1/cot^2x+1=2cos^2-1 ?
- Sin(feta)=1/2 find cos (feta) How would you find it?
- How do you solve the equation #tan(x) + sec(x) = 1# on the interval #[0, 2pi)# ?
- What is the explicit formula of arg(#z_1+z_2#) ?
- How do you prove the identity: tan(θ)+cot(θ)=sec(θ)csc(θ)?
- How to solve this identity by moving only one side #sin^2theta+sin^2theta*tan^2theta=tan^2theta#?
- How do you write an equation of the Sine function with the given amplitude = 12, period = 1/4, phase shift = –1/16, Midline = y = 7?
- What is sinx+sinx?
- How can resolve this identity Cos^4x-sin^4x-2cos^2x=-1?
- Can someone help me solve this? Thanks!
- How would you proof that tanh(x/2)=sinh(x)/(cosh(x)+1)?
- What is the answer of [(cos^2 x - sin^2 x ) / ( cos x - sin x )]^2 ?
- If #sin A sin B - cos A cos B + 1 = 0#, how do you prove that # 1 + cot A tan B = 0#?
- Can #sinx=3/2# for any #x#? If not, why??
- Y= log (sinx). E=? Set of definitions
- Find sin(x) and cos(x) if tan(x)=-24/17 and the terminal side of (x) lies in quadrant II.?
- How do I simplify this? My first instinct is to cancel out the sec term, but I know it's wrong
- Can I get some help please?
- Tan (90-45)= ?
- Can someone help me here. Use Sin2x to find a value of sin180?
- How would you simplify this expression?? (1-cos(θ))/sin(θ)+sin(θ)/(1-cos(θ).
- For each real number θ, if 0<θ<π/2, then [sin(θ)+cos(θ)]>1?
- In triangleABC prove that #sin(A+B/2).cos(B/2)=(c+a)/(a+b).cos(C/2.)cos(A/2-B/2)#?
- Given tan (theta) = -3/4 and sin (theta) > 0, what is the value of cos (theta)?
- Sin x cos x = 1/6 How many solutions are there? Thank you:)
- How do you determine sin(2arccos(15/17)) without using any formulas?
- If sin 0 =√7/5 what is sec0?
- #((1+sinA)^2+(1-sinA)^2)/( 2cos^2(A))= (1+sin^2(A))/(1-sin^2(A))# Prove it???
- Hi there! Can I get some help please? Thanks!
- In a triangle ABC A=30°,B=60°,then a:b:c is what?
- If cosA/a=cosB/b=cosC/c and the side a=2 ,the area of the triangle ABC is what ?
- − ln |sec(θ) − tan(θ)| = ln |sec(θ) + tan(θ)| how do you verify this identity?
- How do you prove #\frac { \tan v - \cot v } { \tan ^ { 2} v - \cot ^ { 2} v } = \sin v \cos v#?
- How to prove this identity? #(rsinxcosx)^2 +(rsinxsinx)^2 + (rcosx)^2=r^2#
- If sinA= cosA, what is the value of cosecA?
- Represent the function? 1)y=sinx
- Can someone help me simplify this please? Thanks!
- What is the distance between #(2 ,(7 pi)/6 )# and #(-4 , (5 pi )/4 )#?
- Simplify sec(x)-cos(x) into terms of sin and cos?
- How do you simplify #\frac { \cos ^ { 2} \alpha - \sin ^ { 2} \alpha } { \sin ^ { 4} \alpha - \cos ^ { 4} \alpha }#?
- Prove the following trigonometric identity?
- How do you simplify cos u sec u/ tan u = f(u)/ g(u) what does f(u) and g(u) equal?
- How do you write sin(4x) in terms of sin(x)? Thank you!
- How do you write tan(2x) in terms of cot(x)? Thank you!
- Using differentiation of trigronometric properties, how is it possible that the derivative of tanx is equal to 1/cos^2x?
- Can #tan(x)=cot(x)#? If yes, list all possible values of #x#?
- How to prove sin^2 (A)*cos^2 (A) = 1/8 (1-cos (4A)) ?
- Cos^4 (50°) - cos^4 (40°) equal ?
- Cos (67°) sin (68°) + cos (23°) sin (22°) equal ?
- (sec^2x+tan^2x)^2/sec x-tan^4x=sec^2x+tan^2x?
- Compute the exact value of #{tan220^\circ-sin220^\circ}/{tan220^\circsin220^\circ}# without a calcuator?
- Can someone help me solve this trigonometric expression please? Thanks!
- Solve #sec(60^@)=x# ?
- Simplify the 2SinxCosx.Sec^2x÷Tanx = ?
- Can I get some help tonight please? Thanks!
- How to prove this identity? (tanx+tany (1-cotxcoty) + (cotx+coty) (1-tanxtany)= 0
- (Sec x + tan x - 1)(sec x - tan x + 1)=2 tan x ?
- What is the number of solutions to the equation #x/100=sin(x)#? Choices given are: (a). 63 (b). 64 (c). 31 (d). 32
- Can someone help me please? Thanks!
- A thin rope 200 inches length is going to be cut into three pieces to form one circle and two equal squares. Which of the following represents the #r# of the circle, if the rope was finally cut in such a way that the total area of the shapes is minimized?
- In a triangle ABC angle B=60 angle C=45 AND D divides BC internally in the ratio 1:3.?
- Consider the expression #2√ 3 cos(x)csc(x)+4cos(x)-3csc(x)-2 √ 3 # This expression can be represented as the product of the factors?...
- #Cos(x+2y)=mcosx#,prove that #coty= (1+m)/(1-m).tan(x+y)#?
- Prove/ Δ sinx =2 sin ( h/2 ) cos ( x+ h/2 ) ?
- Prove/ Δ cosx = -2 sin ( h/2 ) sin ( x+ h/2 ) ?
- How do you solve tan(arcsec(-2))?
- How do you find the period of #y = 1/4 sin ((-7π)/4x)# ?
- Any trigonometry expert here to help, please?
- The two angles a and b both have the terminal side in the 2nd quadrant and cosa= -1/8 and sinb = 3/4. find the exact value of sin(a-b) ?
- IN Triangle ABC with sides a,b,c value of cosecA(sinBcosC+cosBsinC) ?
- How to prove this identity? (1-cosx) (1+secx) cotx = sinx
- How to prove this identity? #(2rsinxcosx)^2 + r^2 (cos^2x -sin^2x)^2=r^2#
- How to prove this identity? #(sin^3x+cos^3x)/(sinx+cosx)=1-sinxcosx#
- How to prove this identity? (xsinA-ycosA)^2 + (xcosA+ysinA)^2 = x^2+y^2
- How to prove this identity? tanx - cscx secx (1-2cos^2) = cotx
- How to prove this identity? cotx+ sinx/1+cosx= cscx
- How do I solve this? If tan α= -1/2 ; α ∈ quadrant II and sec ß = √10; ß ∈ quadrant IV Find: sin( α-ß)
- Can you help me? If Cos (x - y) = 5 Cos (x + y), find E = Tan x . Tan y
- Complete period of cos⁴x+cos³x?
- How do you simplify this trigonometric expression?
- How do you prove ? sec(x+y)= cscxcscy/cotxcoty-1 Thank you :)
- In a triangle length of two larger sides are 10 cm and 9 cm respectively . If the angles of the triangle are in A.P then the length of the third side can be?
- How do you find #\sin \frac { 11\pi } { 6}#?
- If CoA=4/5 than Calculate Tan2A?
- If a=bcosC ,then which angle is right angle ?
- #{(1+sin theta - costheta)/(1+sintheta +costheta)}^2=( 1-costheta)/(1+costheta)#?
- If tan(cotx)=cot(tanx),then sin(2x)= to what?
- How do you evaluate # t a n ^ { 2} \frac { \pi } { 7} \tan ^ { 2} \frac { 2\pi } { 7} \tan ^ { 2} \frac { 3\pi } { 7}#?
- How to make cos x/2 -sinx/2 =1-tan x/2 ?
- Identify α and β in the following expression which is the right side of the formula for cos (α - β)...?
- #1/(cosectheta-cottheta)-1/(sintheta)=1/(sintheta)-1/(cosectheta+cottheta) # Prove this?
- How do i find the value of sec 5π?
- Prove 1/2log((1-cos 2x)/(1+cos 2x))=2cosx?
- If sin(x-y)= cos(x+y)=1/2 then what is the value of x if it lying in between 0 and 180 degree?
- Prove that square of cos x + square of secx is greater than equal to 2 ?
- Prove that #tanx/(1+secx)+cotx/(1+cosecx)=cosecx+secx-secx*cscx# ?
- If siny is the geometric mean of sinx and cosx, then the value of cos(2y) is what?
- Hello, how do you prove that sec(x) = tan(x) + tan(45° - (x/2))? Thank you :)!
- If #1+ sin(x)+ sin^2(x)+......=4+2sqrt3; 0, < x < pi, x != pi/2#, then the value of x is what?
- Prove that? #sqrt(2+sqrt(2+sqrt(2+2cos8theta# = #2costheta#
- How will you prove that #(sinθ-cosθ+1)/(sinθ+cosθ-1) =(sinθ+1)/(costheta)# ?
- If #tan (A-B) /tanA +sin^2C /sin^2A=1 #, prove that #tanA tanB =tan^2 C# ?
- How many degrees separate the big hand and little hand when the clock reads 3:15?
- Two angles of a triangle are #72^@ 53' 51''# and #41^@ 22' 50''# respectively. Find the third angle in radians ?
- Cos4Q-cos4a=8(cosQ-cosa)(cosQ+cosa)(cosQ-sina)(cosQ+sinA)?
- #2 sin^2b + 4cos(a+b)sina sinb + cos2(a+b) = cos2a#? prove that
- If 3costheta+4sintheta=Asin(theta+alpha),then values of A and alpha are?
- What is the simplified value of tan (θ/2) + cot (θ/2)?
- Find the value of sec^2 90°- tan^2 90°?
- How do you solve #2sin^2 (x/2)-3sin (x/2) +1=0# ?
- How do you simplify this? sec A= cos A(tan^2 A+1)
- Sinα - cosα = 7/5, 0<x<180,specify a value sinα + cosα ??
- How do you simplify #sin^2(x)sec(x)#?
- How do you solve cot x >0 for x?
- 3Sin² + 4Cos² = 3 +cos²?
- Find the value of 1-cos theta divided by 1+cos theta,when theta=90 degree?
- How do you simplify (tan^2 x - 1)/(1 + tan x)?
- Is 1-sin(2b) equal to (sin(b)-cos(b))^2?
- How to solve #cos^(2)x-3sin^(2)x=-2#?
- Prove that tanx + tan2x = tan3x ?
- Show that sine^2x+cosec^2x cannot be less than 2?
- If Cosx+sinx=√2cosx then prove cosx -sinx=√2sinx?
- Is sin x+ cos x=1 is a trigonometric equation?If yes why ?
- If sin a =0.8 find cos a and tan a?
- Cosec theata + cot theta divide cosec theta - cot theta =81/49 find cos theta plus sin theta divide sin theta minus cos theta ?
- Use the definition of hyperbolic function to solve cosh x + 3 sinh x = -1 ?
- An angle theta has associated acute angle 53°. Fine sinetheta?
- Cos (x+60)=?
- Prove #(tan x)/(tan 2x - tan x) = cos 2x#?
- If cot A=12/5,then the value of (sin A+Cos A)*cosec A is?
- What is the value of sin 15 in fraction?
- If cosec theta + cot theta is equals to X find the value of cosec theta minus cot theta?
- Given that sin 20° = k, what are the following expressions in terms of k?
- #(sin^2x + cos^2x)/(sinx + cosx)#?
- Sin x - 2 cos x = 0 then cos2x = ?
- How to solve 5 sin 2x= 3 cosx?
- How to solve (\sqrt(2)+1)sin3x-cos3x=0?
- Help me to solve this problem about trigonometry please?
- When is #sin(x)=\frac{24cos(x)-\sqrt{576cos^2(x)+448}}{14}#?
- Find the value of ?
- How to prive this identity? #(1-sinx)/cosx=cosx/(1+sinx)#
- Solve for x on [0,360). 2sin^2x+3sinx=4?
- Verify each equation..? A) (sin a - cos a)^2 + (sin a + cos a)^2 = 2 B) 1+cot^2x/1+tan^2x= cot^2x C) (1-sin a)(1+sin a)= cos^2a
- Please help me how can i prove this identity?
- #(1+tan^2 A)/(1+cot^2 A)=((1-tanA)/(1-cotA))^2# prove ?
- A person flying a kite holds the string 4 feet above ground level. The string of the kite is taut and makes an angle of 60° with the horizontal (see the figure). Approximate the height of the kite above level ground if 300 feet of string is payed out. ?
- Considering the function #g(x)=4sin1/2(x+pi)-2#... if you want to capture exactly 1 period of g(x) on the graph, would the interval #[0, 4pi]# be acceptable? Explain.
- How to solve #sin(x)cos^2(x) = sin^2(x)cos(x)# ?
- Show how 4cos 22,5* cos45*cos67,5=1 ?
- Is tan2x the same as 1/2tanx?
- We know that cosx=-5/13, then what is cos x/2=?
- Convert each of the following products into the sum or difference of sines and cosines : #2sin(5x)cos(x)#?
- What are the exact values of the six trigonometric functions of #(3\pi)/4#?
- Evaluate (a-tan(x)) /(1+a*tan(x))?
- Is f(x)=sinx^2 even or odd?
- How do I evaluate -3csc(11pi/6) - sec (4pi/3) and leave it in radical form?
- If #sinA + cosecA + 2 = 0# then, #sin^(2017)(A) + cosec^(2016)(A) + 1# is equal to?
- Find the value of ?
- What is the exact value of #csc750 #?
- What isthe Minimum value of Sin^2x-1 ?
- Sec²X -tanx=4 Thenx=??
- Sin(tan^-12) = ?
- How do you evaluate #sin(-175) * tan(185°) * cos(355)+sin(-85°) * cos(365°)#?
- If sin47+sin61-sin11-sin25=cos theta and theta is an acute angle then find theta?
- How do you solve #tan^ (-1) (1)+ cos ^(-1)(-1/2) + sin ^-1(-1/2)#?
- If cosA=12÷13then find sinAandtanA?
- How can i solve: 1/cos(x) + 1/sin(x) + 1/tan(x) - tan(x) = 0 ?
- How do you simplify sinx/sin5x ?
- Solve: 3^1/2 cosx+sinx=1?
- If Sin A =4/5 and Cos B=4/5 then what is the relation between A &B?
- Write this set by listing its elements between braces ?
- In triangle ABC if cos A/a=cos B /b=cos C/c,then the triangle is which trangle?
- What is the question about?
- Sec^2 theta - (sin^2 theta - 2sin^4 theta) / (2cos^4 - cos^2) =1. Please explain me?
- If secant theta equals -4 and the terminal side of theta lies in quadrant III, find tangent theta?
- How can i solve cos^2(theta)=1/2 ?
- 4/sin^2 -4/tan^2 is equal to ?
- How to solve cos 2θ = cos 3θ?
- What is simplify sin x + sin (x + 2/3 π) + sin (x + 4/3 π) ?
- In triangle ABC if bsinC+c sinB=2,then the value of sinC is what?
- How do you prove? Sin3x/sinx + cos3x/cosx =
- Tan^-1[(acosx-bsinx)/(bcosx+asinx)]?
- Given cosθ=8/17 and 0 < θ <π/2, find the EXACT values of the other circular functions. What are the values with solutions?
- To solve Cot4x=-1?
- How do you express the angle 380° in radian measure?
- ABC is a triangle such that sin (2A + B) = sin (C-A)= -sin(B+2C)=1/2. If A,B,C are in AP find ABC?
- How do you solve #\frac { 1} { \sin y - 1} - \frac { 1} { \sin y + 1} = - \sec y#?
- How do you solve #\tan ( 2\theta ) = 1#?
- What is the answer of [cos(a)+i sin(a)]×[cos(b)+i sin(b)]?
- How to solve sin^4x+cos^4x=1?
- Prove that 8(sin^6P+cos^6P)=5+3cos^24P?
- #tan theta.tan 2 theta =1 # then find value of #sin^2 2 theta+ tan^2 2 theta#?
- Solve 11+tan^2 2x = 7sec2x For 0<x<180 range.?
- Solve the equation sin 5 x = 16sin^5x?
- If 2sinA = 1 find the value of cot A ?
- Can someone explain how 879.1 is 8.791 x 10^2 in scientific notation?
- Find the least positive angle measured in degrees satisfying the equation sin cube x + sin cube 2 x + sin cube 3x equal (sin x + sin 2 x + sin 3x) whole cube??
- Given that 2x+y=7and3x-2y=3 by how much is 7x greater than 10?
- Find all the solutions of 4cos^2x•sinx-2sin^2x=3sinx?
- Find all the solutions of 4 cos^x sin x - 2sin^x equal to 3sinx?
- How establish the follow identity: #1+cot^2(x/2)=2/(sin(x)tan(x/2))# ?
- How find the values of x in: #(1−tan(x)) / (1+ tan(x))=1+sin(2x)# ?
- How do I rewrite the expression Csc theta tan^2 theta cos^2 theta?
- #sin^-1(sin(2))# ?
- Hi, I have this equation #2cosx-2sinx+cos2x=0# and I am struggling with it. I have tried so many thing with that, but I have no idea. Is that even possible to do?
- If 0 less than A less than 90 and sinA+cosA+tanA+cotA+secA+cosecA=7 then show that sin2A is a root of x2-44x+36=0?
- What is the horizontal distance in miles from the jetliner to the coast of the island?
- The range of cosx-sinx is??
- Why can't sin(3x) be solved using double angle identity?
- If Cos inverse X + Cos inverse Y equal to pi what is the value of Sin inverse X + Sin inverse y?
- Prove a^2 sin(B-C)/sin B+sin C+ b^2 sin(C-A)/sin C+sin A+c^2sin(A-B)/sinA+sinB=0 ?
- What is the domain of y=1 + sinx ? And how do i find it ?
- What is Cot(csc^-1(2x)) simplified?
- What is the approximate value of pi?
- 2/cos^2A - 1/cos^4A - 2/sin^2A + 1/sin^4A =cot^4A - tan^4A. Prove this?
- Prove that tanx+cosx=2secx ?
- How to solve the equation: sin x + cos x = 1 #-# #1/2#sin 2x ?
- Prove that #1/sin theta+1/cos theta=1# ?
- 1+cosA-sin^2A÷sinA (1+cosA)=cotA how to prove?
- Sketch graph for r=6/2+3sin theta?
- Find the exact value of each of the remaining trig functions of theta? Sin theta=4/5, theta in Quadrant 1
- How do you find the domain of inverse sin #sqrt(x/(1-x)# ?
- How do you solve 2 cos^2x - 4 cos x = 1 ?
- How do you solve 4sin^2x - 5sinx-2 = 2cos^2x ?
- Give that cos x = p, where 270<x<360, find cosec x in terms of p?
- ?If x+y+z = π Then prove the trigonometric identify - Cotx/2 + coty/2 + cotgz/2 = cotx/2 coty/2 cot z/2
- 'Prove it #tan x +2tan2x+4cot4x=cot x# ?
- Express in terms of sines or cosines of theta and simplify (cos^2 theta)/(tangent^2 theta + 1) ?
- How do you draw a tignometric graph of 2cos(square)x-1?
- help to simplify # (cos((9pi)/17)+isin((9pi)/17))^5/(cos((2pi)/17)-isin((2pi)/17))^3#?
- Cos(sin^-1(2cos^2x-1)+cos^-1(1-2sin^2x)) ?
- A ship is anchored off a long straight shoreline that runs north and south. From two observation points 20 miles apart on shore, the bearings of the ship are N 27o E and S 52o E. What is the distance from the ship to each of the observation points?
- What is tanθ and sinθ if secantθ=5?
- How to solve #3sin(3x) + 5cos(3x)=0# ?
- Sin 60°+ cos 30°+ sin 30°×cos 60°?
- Could you explain to me how to simplify this trigonometric expression ?
- The least positive value of (theta) for which 1+ tan(theta) =0 and ✓2 cos(theta)+1=0 is what?
- 1+ tan^2 theta/ 1+ cot^ 2 theta= 1 - tan theta/ 1- cot theta ?
- How to solve #csc^2x - 23cotx - 11 = 0#? Thank you!!
- How do you find the domain and range of ln (inverse sinx)?
- Hello, I missed a lesson of Pre-cal, and part of my homework is to find sec(59pi/6) using the reference angle. How do I do this?
- 1/sin theta value?
- Can u prove that 1+cost = 2 cos² t/2 ??
- If [email protected]=3 3/4,what is [email protected]?
- How do you find the domain and range of y = inverse cos(2x-1)?
- Express in radians- 30° what are the steps?
- #cos2x=cosx+sinx# find the general solution ?
- #(Cosec t + sin t)/ (cosec t - sin t)= 5/3# then sin t=?
- In which quadrant does the terminal side of a #pi/3# radians angle lie?
- What are all of the tangent ratios for angle A?
- 2tan square45 +cos square30 - sin square60 ????
- Cos24 + cos55 + cos125 + cos204 + cos300 =1/2?
- If sinθ=0, then tanθ=?
- If tana=(sinx-cosx)/(sinx+cosx) then show that 2cos^2a=1+sin2x?
- How far is malia from the base of the tower?
- If tan^2 x=2 tan^2 y+1,show that cos 2x+sin^2 y=0?
- Draw a diagram to help you answer the following questions a) How high up the wall does the ladder reach? b) How long is the ladder?
- What is the sin < B and cos < B for the diagram below?
- What is the straight line distance between Moira and her house? (include a diagram)
- Cos x.cos(pi/3-x)cos(pi/3+x)=1/4 cos 3x prove it?
- If sin x/a=cos x/b,prove that a sin 2x+ b cos 2x=b ?
- What is ((tanx)(1+cot^2x))/(1+tan^2x)?
- Sin^2(cot^-1{√(1+x)/√(1-x)}=?
- Solution for sinx/(secx+1)*sec2x/(sec2x+1)?
- Find the exact value of csc 45 degrees plus cos 30 degrees?
- #cos theta/(1-sin theta)=(1+cos theta +sin theta)/(1+ cos theta-sin theta)#?
- What is ((cscx-cotx)^4 )*((cscx+cotx)^4)?
- #cos(9theta)+cos(3theta)#?
- Choose the correct option?
- Simplify:(Senx+Cosx)^2?
- What is the solution set of (5+4cosθ)(2cosθ+1)=0 in [0,2π]??
- Solve the problem below??
- -47 Degree 30minute convert to radiant measure?
- Prove : #sin A +sin B + sin C = 4 cos ( A /2)cos (B/2) cos (C/2)# if #A + B + C = 180° #?
- How to find the value of sin(3060) ?
- Does Cos(P) + Cos (Q) = Cos(P+Q)? And if not then what does it equal? thanks
- How do you prove that 1-2 sin^2=2 cos^2-1?
- As sin2x= 2sinxcosx ,what is cos 2x ?
- What is the maximum value of the function 5cosx+3cos(x+(pi/3))+8 over R?
- Please prove that : a) cos3x sin2x - cos4x sinx = cos2xsinx ? b) cos5θcos2θ - cos4θcos3θ = - 2sin2θsinθ ?
- How do you prove sin x cos (x+y) - cos x sin (x-y) = cos2xsiny ??
- Find the maximum value of sin^2(2π/3+x)+sin^2(2π/3-x)?
- Prove : sin A - sin B + sin C = 4 sin 1/2 A cos 1/2 B sin 1/2 C if A + B + C = 180° ?
- What is sec multiplied by negative sin?
- Prove : 1+ secx/secx =sin^2x/1-cosx?
- Prove:1+cos^2 2x=2(cos^4 x+sin^4 x)?
- Two flagstaffs stand on a horizontal plane. A and B are two points on the line joining the bases of the flagstaffs and between them. What is the height of the towers and the distance between them?
- 2cos(x/3)-√3=0 I need the general solutions and how to solve it please?
- Help me to prove that #tan^2A + cot^2 A + 2 = sec^2 A. csc^2 A# please? Thank you before.
- Prove that #1+cos^2(2x)=2(cos^4(x)+sin^4(x))#?
- How do we prove this trigonometric expression?
- What is the value of x in the diagram below?
- Prove #(cotA-cosecA+1)/(cotA+cosecA-1)=cosecA -cotA#?
- Solve please sin3x + sin x = 0? Thank you
- Show that #(tantheta/(sectheta-1))-(tantheta/(sectheta+1)) = 2cottheta# ??
- Simplify #sqrt(((1+cosx))/((1-cosx)))# ?
- Simplify: sin(x+Pi).tan(x+Pi/2).sec(Pi/2-x) how to i simplify it?
- (1-sin^2 theta)sec^2 theta=1 ?
- How can you solve this equation? #sin^2x=2sinx#
- Sin2 theta /2sin^2theta =?
- Prove the following identity? 1 + sin X / 1- sin X = ( sec X + tan X )^2
- How does sin(π-2 θ) = sin2θ?
- 8sinx/8cosx/2cosx/4cosx/8 is equal to sin x prove?
- A 3ft. fire hydrant is next to a road sign. the shadow of the first hydrant is 4.5 feet long. the shadow of the road sign is 12 ft long. the shadows form similar triangles. what is the height in feet above the sign?
- Hi! Could some please help me with the following question in the attached image? Thank You
- Simplify (cot x secx)/(cscx) ?
- What is cos pi/3 - sin 3pi/4???
- If sec²(theta)=2,pi/2(degree)‹(theta)‹(pi),find the value of sin(theta)?
- How many digits of pi does everyone know? Write down all the digits too!
- What is sin (-5pi/2)?
- Sintheta + cos theta equals to 1 find general solution?
- Sin^2(x)= 1/2 ? i need help solving this
- #sec^2 theta /( sec^2theta-1) =cosec^2 theta# ?
- Prove the identity: ? (Sin X + cos X)(sec X + cosec X) - 2 = 2tan X + cot X
- How do you find sin and cos if tan=sqrt2 ?
- Prove the identity: ? 1+sinX/cosX =>cosX/1-sinX P.S- I used (=>) as the identity sign since I don't have that in the keyboard
- Solve :- #cosθ/(1+sinθ) + sinθ/(1+cosθ)=2sec θ #for all # θ in (0°,90°)#?
- Prove this ?
- Solve this?
- Solve cot x/csc+1=csc-1/cotx?
- Evaluate the following expression. tan45° - 10cos60° -6.0 -4.5 -4.0 whats the answer? Whats the answer?
- What are cosA and TanA if sinA=√5/4?
- #2sin^2x + sinx = 1# solve on the interval #[0,2pi)#?
- 1-tan^2A / 1+tan^2 A is A = 30 ?
- If CSC Alpha=13/5 and Tan Beta=-3/4 Find Sin (Alpha-Beta)?
- What is cos of seven pi squared over 8 in radical form?
- How to write cos^2(2x) in simpler form?
- (1+sinx+cosx)^2=2(1+sinx)(1+cosx)?
- The average monthly maximum temperature of Windsor can be modeled by T(t)=14.9sin pi/6(t-3)+13 ,where T is the temperature and t=0 represents January, t=1 represents February and so on. when is the average monthly maximum temperature highest?Lowest?
- Can anyone prove #(1+costheta+sintheta)/(1+costheta-sintheta)=sectheta+tantheta#?
- How do I solve a building has a shadow 48 feet long dot at the same time a 40 foot tall flagpole cast a shadow 9.6 feet long dock what is the height of the building?
- 1/2cos2theta?
- Find the general values of trigonometric equation. CosA + SinA = Cos2A + Sin2A?
- What is x , when sec^2x=0?
- Eliminate x from the following when ; y=acosx and z=bsinx?
- Verify the next identity?
- Find the x-intercepts of f(x) = 5 sin(x) on the interval [−2π, 2π]?
- 1+tan(theta)=?
- How to do this?
- Show that?
- Show that?
- Prove that?
- Prove that?
- The graph of y = 4sin (3x + 2) + 1 has amplitude of? Select one: a. 0 b. 1 c. 2 d. 3 e. 4
- How do you simplify (sec^2 x csc x)/(sec^2 x + csc^2 x)?
- 2sin(x+45)=1 ?
- Sen(47)+sen(61)-sen(11)-sen(25)=cos(7) How do you prove this?
- Plot sinx.cosy+siny.cosx=0 ?
- If tan #theta# + sec #theta#=2 then what is tan #theta# is equal to?
- If #sin (x+ y)=1# and #cos (x-y)= sqrt(3)/2#, where #0 < x+y <= 90# and #x>y#, then find the value of #x# and of #y#?
- Show that?
- Prove the following?
- Show that?
- Show that?
- Sec inverse(-2✓3/3)=?
- How to prove that sec(x) - sin(x) =?
- If #sinx+sin^2x=1,# show that #cos^4x+cos^2x = 1#?
- How to find a remaining side with two bearings?
- From a point 10 m away from the building, the angles of elevation of the top and bottom of a window have measures of #45^@# and #30^@#, respectively. How tall is the window?
- Using algebraic procedures to sketch the function y = 2 cos (πx/3) − 1 for one complete cycle?
- What is Min and Max of this expression : # sin2x + sinxcosx + 3cos^2x# ?
- Verify sin(3π-x)=sin(x) please?
- How do you simplify # (sec^2 x csc^2x)/(sec^2 x + csc^2 x)#?
- How do you solve tan(5pi/12) using summand difference identities?
- Sin theta= 3÷5 Then find sin theta+ cos theta÷ sin theta- cos theta=?
- Let #alpha,beta# be such that #pi < alpha - beta < 3pi#. If #sinalpha + sinbeta = -21/65# and#cosalpha + cosbeta = -27/65#, then the value of #cos(alpha - beta)/2# is?
- How do you verify sin(x)tan(x)=cos(x)/cot^2x ?
- √(1+cos A)/(1-cos A)= tan A prove?
- Simplify the following: ? cosec x (cosec x - sin x) + (sin x - cos x)/sin x + cot x
- Tan theta=-2/3,sin theta greater than 0? Thanks
- If #sin x + sin^2 x = 1# then the value of #cos^2x + cos^4x + cot^4x - cot^2x# is?
- #(sec 8theta -1 )/ (sec4theta -1)= (tan8theta) /(tan 2theta)#?
- How do you solve this trigonometric equation? 2tan^2x-sec^2x=0
- How do you verify cos^4 2x - sin^4 2x = cos 4x?
- How do you verify cos^4 2x - sin^4 2x = cos 4x?
- How to solve (cosx+sinx)^2-2sinx+cosx=2sinx?
- If sin theta=m/n,find the value of (tan theta+4)/(4 cot theta+1)?
- If #cos theta =7/8,#evaluate#{(1+sin theta)(1-sin theta)]/[(1+cos theta)(1-cos theta)] #?
- A person 2 metres tall is standing on the ground and looking at the top of the building. If the person is 18 metres away from the building and the angle of elevation of the top of the building is 30 degrees, what is the height of the building?
- How do you verify the trigonometric identity (1/csc x - cot x) - ( 1/csc x + cot x) = 2/ tan x?
- If #sin alpha + sin beta+ sin gamma= cos alpha+ cos beta+cos gamma =0.# then prove that # sin3 alpha +sin 3 beta +sin 3 gamma=3 sin (alpha+beta+gamma)#?
- Sin sq.alpha + cos sq. Bita =5/4 Then cos sq. Alpha + sin sq. Bita=?
- The period of #sin(x/2)# is?
- What is trigonometry?
- How do you prove: (cos x - sin x)^2 + (cos x + sin x)^2 = 2?
- Sqrt(cotX) /sinx. Cosx?
- For the right angle triangle shown, which of the following values is the only possible value for the length of side C? Please I need steps.
- Cosec^6 theta=cot^6 theta+3cot^2 theta xxcosec^2theta+1---------(prove this)?
- If #sin(theta)+cos(theta)=(sqrt2) sin(90^@-theta)#,find #tan(theta)#?
- What are the name of (B) and (C) ?
- Prove if: 1. sin60 × cos30 - sin30 × cos60 = sin30 ? 2. Sin30 × Cos30 = sin60 ?
- How do you solve?
- How can I solve the follow equation?
- What is the Value of sin((2 tan^-1(x)) ?
- The least positive value of theta for which 1+ tan(theta)=0 and ✓2cos(theta)+1=0 is what?
- How do you simplify sec y sin(pi/2 - y)?
- Is f(x) = sin x an identity? Please explain why or why not. cos x cot x
- If sin=√5/3 what are cos(A) and tan(A) ?
- How do you simplify (sin x)(tan x + cot x)?
- What is (1 - sin^2 x)/(1 + sin x)?
- What is cosx - cos^3 x?
- The no.of values of x for which squre of cosx=1 and square of x is less than equal to 4 is what?
- The least positive value of x for which tan3x=tanx is what?
- If cos(alpha)=cos (beta),then (alpha +beta) is what value?
- Tan2 theta + cot 2 theta =? If tan theta + cot theta = 5
- If # tanx.tan2x.tan7x=tanx+tan2x+tan7x#,then the value of x is what?
- For the what value of #theta ,sin(theta)+cos(theta) =✓2# ?
- The no.of solutions of 2 sec(theta)+1=0 is what?
- Please help and show work pleaaaase?
- What are the values of theta, where r=0, in the equation r=2cos3(theta)? What is the maximum value of r in the equation r=2cos3(theta)?
- How do you prove # ( 1- cscx sec^3x+ secx cscx)/ cscx= sinx-tan^2 xsec x#?
- How do you prove #( cosx + sin^3 x- sinx)/ sin x= cotx - cos^2x# ?
- How to solve this problem?
- How to you solve tg x - cotg x = 0 ?
- How to do this problem?
- What is #tan(2A)# equivalent to?
- If sec theta + tan theta = 5 ,find sin theta + cos theta divided by cosec theta -cot theta ?
- If #tan(theta)=tan(alpha)# and #90°<alpha<180°#,then they can be in which quadrant explain ?
- If #tantheta =x-1/(4x)# then value of #sectheta-tantheta# is equal to? Thanks
- if #cos theta +sin theta=1#,then prove that # cos theta-sin theta=(+) or (-) 1 #?
- If # tan theta + sec theta=x#,then prove that # sin theta =(x^2-1)/(x^2+1)# ?
- How do i convert sin(1.5) in to radiant?
- From the top of a building 62m high, the angle of depression to the bottom of a building across the street is 55 degrees. The angle of elevation to the top of the same building is 25 degrees?....
- Find the exact value of sin(2x) if tan(x)=-1/5?
- When is the secant functions undefined?
- What is the value of Cot 7 (1°/2)?
- Why does the graph of the secant function have breaks in it?
- How can i solve 3tanx-tan³x/1-3tan²x???
- How do you prove sin/(1-cos) - (1+cos)/sen = 0?
- I struggle with identities. How do you do this?
- How do you prove #csc^2x +cot^2x csc^2x=csc^4x#?
- #1/(tan3A-tanA)-1/(cot3A-cotA)# is equal to?
- Trig identity equality, how do you do this?
- Last one I think I will need to just get a good basis on identities. How do you makes one side equal the other?
- A light pole is fastened to the ground by means of tie rods. If one of these is 4m long and forms an angle of 53 ° with the ground, what height on the pole is the connection with the cable?
- What is the value of #csc 17°#?
- What is #cos ( (5pi)/3)#?
- How do you solve 2sin^2(x) < 1 ?
- How to find value of any trigo value for example cos 120 degree??
- How do you show that #sin(pi/5)+cos(pi/5)=sin((3pi)/10)+cos((3pi)/10)#?
- Cos(x) - Cos(x) X Sin^2x =?
- Tan(4theta+5)=-14 ?
- Tan 60/sin 60 + cos 60 ?
- Given tan x = 0.7265 and 180° #<=# x #<=# 360°, what is the value of #x#?
- Find the point on the Unit Circle associated with the rotation -9π/2? [Please explain]
- Suppose #cos theta = 3/5#, what is #sin theta#?
- If sin(a)/sin(b) = p and cos(a)/cos(b) = q then tan(b) =?
- Cos(x)=sin(x). Then the value of cos^4x + sin^4x=?
- Show that 1/tanA+sinA/cosA*sinA/cosA+1/secA+1/tanA+cos 80-sin(90-A)=2?
- What fraction is 135 degrees??
- #2/cos^2x-3tanx=7# Find the angles between 0 and 360 degrees?
- How do you solve #cos^2(x) + 8*cos(x) +3# for a minimum problem?
- Solve this equation for values of x between 0° and 360° inclusive:? 9 sec^2 x - 24 sec x + 16 = 0
- Find the exact trigonometric ratio for the angle whose radian measure is 9 Pi / 2?
- Tan 2x/3=√3?
- Find the value of x in sinx=(1+x)/(1-x)?
- Cos a = 0.8 Then what will be the value of a??
- Law of cosines the ambiguous case and area of a triangle math help?
- Help please?!
- Prove (sin(2x) +1-cos(2x))/(sin(2x) -1+cos(2x)) = (1+tan(x))/(1-tan(x)). How to do?
- Who can I solve sin^2=sinx algebraically?
- Tanx+cotx=2,find sinx?
- Sec^2=2+2tanx,find tanx?
- 8sinx=4+cosx.Find sinx?
- If #7\sin ^ { 2} \theta + 3\cos ^ { 2} \theta = 4#, what is the value of #tan \theta#?
- What is the vlaue of sin 5pi/3?
- What is cot(π+x) in terms of x?
- If tan/tan b=root 3 and sina/sinb =root 2 then find a and b?
- How to graph #y=1/2 sin 5(x-pi)# ?
- For 0< x<π/2, if #sinx+sin3x=cosx+cos3x# then x = ?
- 1 +cos4x / 2cos2x =??
- Tan22 1/2 =x then cos 67 1/2 =???
- What is the sol of #(cosec^4x-cot^2x)(cosec^4x+cot^2x)#?
- How do you solve 1/cos a +3 tan a = 10?
- What did people get for this question? cos (x) sin (2×)-2sin (x)=1/4
- How do you solve #mcosx+msinx=cos2x#?
- How to solve? Tan 2x/ x^2 - 2 tan x/ x^2 =
- (1+cotA+tanA) (sinA-cosA) =secA/cosec^2A-cosecA/sec^2A Prove?
- If #sin x = 3/5"# and #x# is acute angle, what is #cos x# and #tan x#?
- The length of a seconds hand in a watch is 1 cm. Magnitude of change in velocity of its tip in 15 sec is?
- If #sin A = -5/13, pi < A < (3pi)/2#, and #cos B = 24/25, (3pi)/2 < B < 2pi#, what is #sin(A+B)#?
- Find the exact value #cos(pi/6)cos(pi/12)-sin(pi/6)sin(pi/12)=#?
- How to solve sin2α-cosα=0 [0,2π]?
- What is the is the number of revolutions that a bicycle wheel of a diameter 25 inches make as the bicycle travels a distance of 3 miles?
- Find #(0.5"cis"30^@)(4"cis"120^@)#. Express your answer in rectangular form?
- Show that sin70-cos40=sin10?
- #Q_n) ##tan(x)# is periodic with period #pi/2#?
- For the equation sin 3θ + cos 3θ = 1 - sin2θ then? Please note that the question has multiple answers, i.e. one or more options may be correct.
- Cos-9pi/4?
- Tanx × 3 = tan3x or 3tanx which on is correct ?
- Trigonometric and Hyperbolic Function?
- Cos 2x + 2sin2x=1?
- Cos^(2)xcscx-cscx ?
- How to Prove the identity sin(x)+sin(3x)=4sin(x)cos^2(x) in steps?
- Given the function f(x)=cotx which value of x is the function undefined ?
- Prove that 1 - cos theta / 1 + cos theta = (cosec theta - cot theta)2?
- #(1-sin(2x)) /(1+sin(2x))=tan^2(45^@-x)# How to prove this without integration? Can we use rationalizing here?
- Finding the expression of a reflex angle?
- #Sin 2x + 2sin 4x+ sin 6x = 4cos ^2x sin 4x# How to prove it?
- Prove that : tan 2A -tanA = tanAsec 2A ?
- Find sec(x-5π/2) ?
- (cos(t))^2=3/4 through interval [0,2pi] theta=______pi ?
- If tan(A+B)=1/7 tan(A-B)=1/9 Then find tan 2A=?
- Proving an identity and solving an equation?
- Can someone help me? arctg 1/3 + arctg 1/5 + arctg 1/7 + arctg 1/8
- How do you simplify #\sin ^ { 2} ( \frac { \pi } { 4} ) - \cos ^ { 2} ( \frac { \pi } { 4} )#?
- Given F(x)= csc(2x), find f(pi/4) ?
- If sin (x)= 3/8, where x is in quadrant 2, how would you find cos (x)?
- Complete the identity Cos2x= ?
- Cosec^2Acot^2A-sec^2Atan^2A-(cot^2A-tan^2a)(sec^2acosec^2a-1)?
- Verify that the equation is an identity?
- Complete the identity of #sin^2(theta)- 1=# ?
- Solve the equation... (cosT+2)(2 cos T-1) = 0 over the interval 0 < or equal to T < or equal to 2Pi ?
- If #f(r)=cos2rtheta# ,by simplifying f(r+1)-f(r).How to use the result to find the sum of first n terms of the series #sin3theta + sin5theta + sin7theta +...#?
- If 5theta is an acute angle such that sin theta=cos theta then value of root3 tan4theta-2sin2theta is?Thankyou
- Expand and simplify? Sin(90+A)
- If x=a cos^3 theta and y=b sin^3 theta prove that (x/a)^2/3 + (y/b)^2/3 =1. How to prove?
- If #y=cot^-1(√cosx)-tan^-1(√cosx)# Then prove that #siny=tan^2 (x/2)#?
- Prove the following? #cos 7x + cos 5x+ cos 3x + cos x = 4 cos x cos 2x cos 4x#
- How do you simplify #(2)/(1/tan x-tan x)# ?
- How do you prove 2tanxcsc2x-(tan^2)x=1?
- Prove the following? #sin 10° sin 50° sin 70° = 1/8#
- How do you simplify (1-tan^2 (x))/(1-cot^2 (x))?
- Show that #(1+2sin60cos60)/(sin60+cos60) + (1-sin60/cos60 )/(sin60-cos60)=cot30#?
- Find all the solutions to the equation 2cos^2(x) = 1 + sin x?
- 6cos(x+2)=1 Solutions?
- I can't seem to solve this triangle correctly, any help?
- Can we say tan270=tan(-90)=-infinity?
- Find tan(π\4+A)in terms of tanA?
- How do you use Cot when dealing with a non-right triangle?
- Find Sin(1200)?
- The function y = cos3x.cosx is a periodic function with periodicity?
- Find The term independent of x in the expansion of ( tan x+ cot x)6?
- How do you evaluate #(sin^2 63 + sin^2 27)/(cos^2 17 + cos^2 73)#?
- Express as a product of sines and cosines:sin2x+cos4x?
- #(1+secx)/secx=sin^2x/(1-cosx )#prove the identity??
- How to solve this? sen x + #sqrt(3)#.cos x = 1
- How to solve this? #2sin 11x + cos 3x + sqrt3sin 3x = 0#
- If #cos(θ) = -5/13# and #sin(θ) < 0#, what is tan(θ) ?
- #sin^(-1)(cos(2x))# is?
- How do you evaluate #sin 25 cos 65 + cos 25 sin 65#?
- Convert the number #5-5sqrt3i# to trigonometric form? ASAP :)
- Answer #csc(y)(sin(y)-1) = 1-csc(y)#?
- How do you solve #\sec ^ { 2} \theta = 7+ \tan \theta#?
- I need help simplifying this expression?: cos^2 (x) /(1+sin(x))
- How to solve this equation? sec x - 2 cos x = 1
- What is the value of x in Tanx+tan(π\3+x)+tan(2π\3+x)=3 ???
- Solve the equation: sen x - cos x = sen 2x - cos 2x -1 ?
- Find the principal root of (－5－5√3i)^1/6 and express the result in rectangular form?
- #y = sec^2theta + cos^2theta#, #theta != 0#, then?(Solve it without A.M - G.M inequality method)
- How do you solve sin 4X + cos 5x = 0 ?
- Help prove this?!
- How can we prove that cos (-A) =cos A ? Where A is the angle.
- What is the answer for #2sin^2(theta/4)=1#?
- How to find the radian solutions in this equation?
- Prove the equation Tan2x (1+cot2x)=1/1-sin2x?
- What is # 5*arc cos(sqrt(5)/4+1/4)#? Why?
- How do you solve the following? (1+tanx)^2 = 1+2sinxcosx/cos^2x ?
- If 0 < x < π, and cos x + sin x = 1/2, then tan x is?
- How to do this?
- How does #sec^2(pi/2-theta)+csc^2(pi/2-theta)=sec^2thetacsc^2theta#?
- Tan inverse.tan(5π\6) + cos inverse cos (13π\6)?
- Cos330°=√3/2 find the value of sin165° and sin 165°?
- Tan(x/2)+cot(x/2)=?
- Help solve this trigonometry equation using trig identities?
- #2sin(2x)=sin(x)# ?
- Use trigonometric identities to solve cos(2θ)−cos(θ)=0 exactly for 0∘≤θ<360∘. If there is more than one answer, enter your answers as a comma separated list?
- Numeric value of # (cos^2 45^@/sin^2 60^@)+(cos^2 60^@/sin^2 45^@)-(tan^2 30^@/cot^2 45^@)-(sin^2 30^@/cot^2 30^@)#=?
- Use a sketch to find exact value of expression? cos (tan^-1 5/4)
- How do you solve #2\sin ^ { 2} x \geq \sin x# if # 0\leq x < 2\pi#?
- 2(cos(theta))^2-cos(theta)-1=0 What does theta equal? Through interval [0,2pi]
- #2(sin(theta))^2-sin(theta)-1=0# what does #theta# equal through interval #[0,2pi]#?
- (cos(t))^2=3/4 through interval[0,2pi] what does t equal?
- 2sin(theta)cos(theta)+sin(theta)-2cos(theta)-1=0 where theta is in interval [0,2pi] what is theta?
- How do you solve #\tan x + \cot x = 2#?
- If tan A = 3/4 then A = ?
- How do you evaluate #\tan ( \frac { 8\pi } { 3} )#?
- How do we solve this?
- How can I prove that Sin(A+60°)Sin(A+120°)=(Sin 3A)/(4 sin A)?
- How do you prove? tan^2 x csc x = tan x sec x
- Find all solutions of the equation in the interval [0,2pi)? 3cot(x+pi/6)-sqrt3=0
- How do you solve #( \sin x ) ^ { 2} = 3#?
- Solve for: (a) θ if 0<θ<360 (b) all degree solutions Sqrt(3)cotθ - 1 = 0 Can anyone help?
- Evaluate sin{x/2-sin^(-√3/2)?
- How to prove it: (cotx + tanx)(cotx-tanx)=4cot2xcosec2x ?
- How to do this?
- Can someone solve this? pls
- Solve the equation. #2tan^-1 6x=pi/2# According to my answer sheet #x = 1/6#, can someone help me recognize the steps to get me there? Any help is appreciated.
- For what numbers -2pi <or equal x < or equal does sec x=-1?
- How does cos(theta+pi) = -cos theta?
- What is the exact value of #\sin \frac { 13\pi } { 8} | #?
- How can I prove this?
- Using addition formula how to solve: #arctan(x) + arctan(1/2) + arctan(sqrt3/2) = pi/2#?
- How to identify these?
- Could I get help with 13 and 14 ? ( don't mind the quotations that are there it was more for me that anything else anyway ) .
- If p = a ( sec x + tan x )^2 and q = b ( sec x - tan x )^2 ,then find x^2 × y^2 ?
- What is the value of x in this equation #2cosx- cos5x= 16sin^2 x cos^3 x# ??
- What is the value of #x# in this equation, #sin7x+cos2x=-2# ??
- How do you solve #(2\times \cos 2x ) ^ { 2} + 4\sin ^ { 2} 2x = 4#?
- Given that sinθ=3/5 and cosα=-3/5 where θ and α are in the same quadrant? Find the value of (i) cos2α (Ⅱ) cosec(90゜+α) (Ⅲ) cot(180゜-θ)
- What is the value of sin θ if θ is the angle formed by the positive x-axis and a line segment passing through the origin and the point (−3, 4)?
- Question:Prove that #Sintheta/(cottheta+cosectheta)=(2+sintheta)/(cottheta-cosectheta)#?
- Cot^-1 4/3=A sinA=?
- What is -10+8i in polar form?
- If acos#theta# + bsin#theta#=c , bcosec#theta#-asec#theta#=c. Prove that : cot2#theta#=#(c^2+a^2-b^2)/(2ab)# ?
- If... sin x=2 find x?
- How do you solve cos(2arccot(x/3)) using identities?
- Find all solutions in the interval #(0,360^@)# of #sin(2theta) = sin(theta)#?
- Find all solutions for -2cos(theta)=1 when 0<theta<2pi provide all answers for theta?
- #2cos^2(theta)=3sin(theta)+3# exactly for #0 < theta < 2pi# What does #theta=#? there can be multiple answers.
- #tan(2theta)+tan(theta)=0# ? In interval #0 < theta < pi#
- Sin^2(theta)-cos^2(theta)=sin(theta) exactly for 0<theta<2pi what does theta=? There can be multiple answers
- In triangle DEF, #m/_D = 44°, m/_E=61°,# and #EF=20# #i n #. What is #DE# to the nearest tenth of an inch?
- What is the answer to this: #(cos3A-cos7A+cosA) / (sin3A+sin7A+sinA)# ?
- #Sec^2(π/16)+sec^2(3π/16)+sec^2(5π/16)+sec^2(7π/16)#?
- Cosectheta +cottheta =5/2 than cot theta=?
- Sec(tan⁻¹2/3)=?
- If cot theta (1+sin theta) =4m and cot theta(1-sin theta)=4n, then how to prove that (m^2-n^2)^2 = mn?
- How to solve for x?
- How do you graph #y=cos(2(x+pi))#?
- #(Csc a +1)/(csc a -1) = (cot a +cos a)/(cot a -cos a)# ?
- How to cross-multiply (1) and (2)? #acostheta+bsintheta-c=0#---(1) #asintheta-bcostheta+csinthetacostheta=0#---(2)
- Find the other 5 trigonometric functions given csc theta = 7/4?
- How to simplify the expression using a double angle formula? 1-2sin^2(3pi/7)
- How do you convert -3°53' to radians?
- Prove that #cos^(3)2x+3cos2x = 4(cos^6x-sin^6x)# ?
- How do you solve this Tan^2x=csc^2xtan^2x-1?
- At a point on the ground 65 feet from the foot of a tree, the angle of elevation to the top of the tree is 35°. What is the height of the tree?
- How does #(costheta_1costheta_2-sintheta_1sintheta_2)+i(costheta_1sintheta_2+sintheta_1costheta_2)# become: #[cos(theta_1+theta_2)+isin(theta_1+theta_2)]#?
- Given sin(x)=6/7 and x is in quadrant two find sin(x/2)= ?
- Use trig identities to solve sin(2x)-cos(x)=0 exactly for 0 < x < 2pi ? There are multiple answers.
- A wheel makes 360 revolutions in one minute. Through how many radian does it turn in one second?
- Find theta in radians when tan(theta-2)=.22 when theta= ?
- #sin^2theta +cos^2(-theta) =2cos(pi/2-theta)# what are the values that satisfy this?
- A skier is at the top of a mountain. His angle of depression looking down at the ski lodge is 54°25'28". If he rides the ski lift 8750 feet to the lodge, how far is the lodge from the base of the mountain?
- Who is x ? solve de ecuation min(sinx ; cosx) =pi\4 , [0;2pi]
- Can any one help me out?
- #p=cot(theta)+cos(theta)# #q=cot(theta)-cos(theta)# Find #p^2-q^2=#? Options #2sqrt(pq)#, #4sqrt(pq)#, #2pq#, #4pq#
- Trigonometry Transformations question: how do I solve such questions?! Thank you!!
- Sin^6+cos^6=?
- Prove that #(16cos)pi/15*(cos)2pi/5*(cos)4pi/15*(cos)8pi/15#=-1 ?
- Sin a = 3/5 But in the question 5 isn't given how do you find 5?
- Please! true or false? sin45º<sin170º; cos 18º>tan 100º
- Evaluate #sin^2 π/8 + sin ^2 3π/8 + sin ^2 5π/8 + sin ^2 7π/8#?
- How to solve cos2x<3sinx + 2 for (-π<x<π)?
- What is the graph of sin greater integer x?
- Π/4=30degree ?????how?? ???
- What is the value of #cos(2pi+x)# if #sinx=0.3#?
- How do you solve #tan x + tan 2x +tan3x=0#?
- Find the general and particular solution of the equation: tan theta+cot theta=2?
- Find the general and particular solution of the equation: sinx+sin3x=sin2x?
- Find the value of x (less than 90°) ? #2sin^2 x = 1/2#
- Cosx +(2+√3)sinx=1. Find general solution?
- Prove that ?
- Find the general and particular solution of the equation: 2sin^2 x=3cosx?
- Find the general and particular solution of the equation: 7sin^2 theta+5cos^2 theta=6?
- I am having a hard time proving this. I get stuck after awhile. Does anyone have any ideas? #cot(θ)cos(θ) + sin(θ) = csc(θ)#
- Trigonometry transformations question:how do we solve these? ThankYou!!
- 1)Find angle between 0and 720 degree whose tangent is -1 upon root 3??
- (1+ 1/cosx + tanx)(1-cosx + tanx)=2tanx?
- What are the coordinates of #y=tan(x/2)# with gradient 1?
- Find the six angles of which Sine theta = - root 3/2?
- If cos theta=(cos phi - e)/(1 - e cos phi), show that tan theta/2=+-#sqrt((1+e)/(1-e))# tan phi/2, where e is a constant?
- Prove the following : ?
- How do you solve #\sin \frac { 2x + 1} { x } + \sin \frac { 2x + 1} { 3x } - 3\cos ^ { 2} \frac { 2x + 1} { 3x } = 0#?
- Can anyone help me to solve# 4sin(x-pi)cos(x-pi)=√3 " for " 0<x<2pi#?
- How to solve sinx = cosx +1 ?
- If sin theta =-1/2 what is the value of sin 210° ?
- How do you prove #\sin ^ { 2} \theta - \cos ^ { 2} \theta = \cos \theta + 1#?
- What is a function that is equivalent to f(x)? #f(x)=(1-cos 2x)/sin^2x#
- If #theta+phi=alpha# and #tan(theta)=k tan(phi)#, prove that #sin(alpha)=(k+1)(sin (theta-phi))/(k-1)#?
- In any quadrilateral ABCD, show that cosAcosB-cosCcosD=sinAsinB-sinCsinD?
- Verify that cot^2 x/2 = (1+cos x)^2/sin^2 x is an identity? Show all necessary steps
- How do I simplify: tan^2 (csc x^2 -1)?
- Sin^-1(x) +tan^-1(x)=π/2. Find the value of x=??
- How do you simplify the following?: sin(2x + 7y) + sin(2x - 7y)
- What is the solution here ? arccot(sin150)
- Prove that # (tantheta+sectheta-1) /(Tantheta-sectheta+1) =(1+sintheta)/costheta# ?
- How do you prove that #tan2x-sin2x=2tan2xsin^2x#?
- What are the #x#-intercepts of the graph of #f(x)=8 sin^2x-4# on the interval #[0, 2pi]#?
- How do you find the exact value of #cos (5pi)/6#?
- Express the following as functions of angles less than 45° : I) cosec (-7498°)?
- Find the value of 2sin38sec52 ?
- What is 5-5i in trigonometric form?
- Can anyone help me to solve sinx=cos(x+(π/6)) for -π<x<π?
- Cot theta >o and sin theta<o then theta lies in????
- How to prove sin^2xtan^2x+sin^2x=sec^2x-1?
- Prove that #sin(x+pi) = -sin(x)# Help?!
- Prove #sec^2x-1=sec^2xsin^2x#, and justify significant steps. (state identities used) Help!?
- How do you find an approximation of #csc^-1 (-1.73)# rounded to 4 decimal places on a calculator?
- Csc(sin^-1(12/20)) what is the exact value?
- Write in terms of the cofunction of a complementary angle #sin(pi/5)#?
- Write cos(pi/24) in terms of the cofunction of a complementary angle?
- #2csc^2x(1-cos^2x)-1(sin^2x+cos^2x)=1# ?
- What is the answer Simplify \(\sin x\tan x+\cos x\)?
- How do you solve #sin^2(3x)+ cos^2(2x) = 1# ?
- If #f(x)= sin(2x)#, find #f(5pi/6)# ??
- Can u please solve sin3x=4sin²x for 0<x<360?
- Find x+y, if: Sin ( 2x + y + 8° ) = Cos ( x + 2y + 16° ); Sec ( 2x + 3y – 8° ) = Csc ( x + y + 20° ) ?
- If #\sin t = \frac { 2} { 7} ,\cos t = \frac { 3\sqrt { 5} } { 7} # what is #\csc t#?
- If # tan(alpha+beta)=a+b# and # tan(alpha-beta)=a-b# then show that #atanalpha-btanbeta=a^2-b^2#?
- Tangent (x degree + 45 degree)?
- How to find cosα = ?
- Can you help me guys ?
- Sinx+cosx=a sin^3(x)+cos^3(x)=?
- [(sinx+cosx)^2-1]/cos^2x = ?
- What will be the value of x in #cos^-1x+sin^-1(x/2)=pi/6#?
- What is the value of #cos20cos40cos80# ?Without using calculator.
- 2cosX / Cos2X + 1 = secX ?
- How do I prove Tan^2x -sin^2x = sin^2x tan^2x ?
- How do you prove #1-cos^2x=(1-sin^2x)/cot^2x#?
- Given that sinx = 3/5 and cosy = 7/25, with x and y both being Quadrant I angles, find tan(x/2).?
- How do you solve #cos(pi*sinx)=0# ?
- How do you solve #sin(sinx)=0# ?
- Solve 2 - 2sinx = 1 for 0° ≤ x < 360°.?
- Word problem trig?
- Convert 79° to radians. Round to the nearest ten-thousandth?
- Find all solutions of the equation in the interval [0, 2pi) ? Cos^2 (x)=2+2sinx
- If #sec theta = 5/3# and the terminal point determined by #theta# is in quadrant 4, what is the value of #theta#?