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What is #int sec(x)^3tan(x)dx# ?
What is #inttan(x)^3sec(x)^3dx# ?
A proton with velocity v completes a circle with radius r in uniform magnetic field.what should be the velocity of alpha particle so that it completes a circle with same radius under the influence of the same magnetic field?
If nth term of a series is 1/2 ×n(n+1) then find the sum of n terms of the series ?
Anybody know the answer?
Can someone please explain this?
What is the difference between t = 0 and t = 1 seconds?
If n is a natural number that is not a multiple of 3, prove that #1+w^n+w^(2n)=0#?
Prove #lim_(xrarr5)(2x+4)=14#?
If w is a complex cube root of unity then show that #(2-w)(2-w^2)(2-w^10)(2-w^11)=49#?
Find the square root of 4-3i?
The rotational inertia of a disk about its axis is 0.70kgm2. When a 2kg mass is added to its rim ,0.40m what will be its rotational inertia?
A particle is moving in a straight line.its displacement at time t is given by s (in m) =-4t^2+2t,then its velocity and acceleration at time t=1/2 second are..???
How to find the trigonometric equation for #3(cos x - 2sin^2 x) = cos x - 2# ?
Find all x and y (0 ≤ x < 2π, 0 ≤ y < 2π) so that the following equation is true? (Enter your answers as a comma-separated list.) #cosx+isiny=sinx+i#
Solve this expression 4/1/3 ?
A kid is trying to solve a problem and he has: #(13m/s^2*12m/s*21 kg)/(2000 A)=# State his answer with one unit?
What is #intx/sqrt(1-x^2)# ?
Show the simplification from #(8.31 "LKPa")/("molK"# to #(8.31 "J")/("molK")#?
State the units for intensity using only fundamental units? (Hint: work from #W/(m^2)#)
Q.5 Correct the mistakes if present in the following statements?
When air at 300k and 1 atm pressure is compressed to one.twentieth of its original volume and 30 atm pressure the new temperature will be?
How could I turn 2sin5xcos3x into a sum of trig functions?
Show the steps of square rootof 6889 ?
Use the standard cell potential to calculate the free energy change for the cell reaction under standard conditions?
Anybody know the direction?
Solve for x in #|(3+x,5,2),(11-3x,17,16),(7-x,14,13)| = 0#?
Show that #|(a+b,b+c,c+a),(b+c,c+a,a+b),(c+a,a+b,b+c)|=-2(a^3+b^3+c^3-3abc#?
Prove #|(1,cosx-sinx,cosx+sinx),(1,cosy-siny,cosy+siny),(1,cosz-sinz,cosz+sinz)| =2*|(1,cosx,sinx),(1,cosy,siny),(1,cosz,sinz)|#?
Prove #|(1,a,a^2,a^3+bcd),(1,b,b^2,b^3+cda),(1,c,c^2,c^3+dab),(1,d,d^2,d^3+abc)|=0#?
Roots of #x^3-16x^2-57x+1=0# Is #a#, #b#, and #c# Then #a^(1/5)+b^(1/5)+c^(1/5)=#?
Find the equation to the straight line drawn at right angle to the straight line #x/a-y/b=1# through the point where it meets x-axis?
#A=1+1/{1+1/[1+1/(1+1/...)]}# by solving it i get both a positive and a negative solution. Why negative?
A 100g object is falling freely under gravity in absence of friction what will be the net force on it after 2 seconds?
If a projectile is projected with kinetic energy.having maximum possible horizontal range.then what will be it's kinetic energy at highest point?
I have six full boxes of counters and one box with eight counters missing. There are 132 counters altogether. How many are in each full box?
Rectangular playing field has an area of 4000m². It is 40m longer than it is wide. If its width is w, solve the equation w(w + 40) = 4000 to find the length and width of the field to the nearest metre. Initially try w = 50?
Please explain this method to solve series?
Can anyone help?
How do you solve f(x)=a(2^kx) with f(0)=10 and f(3)=640. Find f(2).?
A body is moved through a distance of 500m by a force of 20N. If the power developed is 0.40Kw. Calculate the time for which the force acts?
How do I simplify 2sin(100pi/9)*cos(100pi/9)?
A train travels 60km in M minutes. If it's average speed is 400km per hour find the value of M?
If the simple interest on a sum of money at 3% per annum for 2½ years is $123,find the principal?
What is the sum V of the twelve vectors that go from the center of a clock to the hours 1:00,2:00, ... , 12:00?
An interesting problem...?
A photon of wavelength 100mm acts as a mass of? My text book gives the answer 2.21×10^-41. but a photon can't have mass because when an object travels with speed of light it's mass becomes infinite.
If x + 1/y = a + 1/b,then show that x.x + 1/(y.y) = a.a + 1/(b.b)?
Show that the two straight lines #x^2(tan^2theta+cos^2theta)-2xytantheta+y^2sin^2theta=0# makes angles with the x-axis such that the difference of their tangents is 2.?
Find the condition that one of the straight lines given by the equation #ax^2+2hxy+by^2=0# may coincide with one of those given by the equation #a_1x^2+2h_1xy+b_1y^2#?
Prove that the product of the length of perpendiculars from #(alpha,beta)# to the lines given by #ax^2+2hxy+by^2=0# is #(alpha^2+2halphabeta+b*beta^2)/(sqrt((a-b)^2+4h^2))#?
Show that the line y=mx bisects the angle between lines #ax^2-2hxy+by^2=0# if #h(1-m^2)+m(a-b)=0#?
A vertical pole is divided by any point in the ratio 9:1. If both the segments subtend equal angles to each other at a point 20m away from the foot of the pole , find the height of the pole?
Solid formed after revolving the area between #y = x^2# and #y = x+2# around #y# axis?
Charlie bought a $60 radio on sale off 5% off. How much did he pay including 5% sales tax?
Find #K_c# for the reaction below (see details)?
1kg m^2 s^-2 is equal to? a)10^2gm cm^2 s^-2 b) 10^5gm cm^2 s^-2. c) 10^7gm cm^2 s^-2. D)10^9gm cm^2 s^-2
For the following reaction, with #\sf{K_p=28.5" @ 25°C"}#; if #\tt{KO_2}# solid and #\tt{CO_2(g)}# are placed in an evacuated flask and equilibrium is established, what is #\tt{P_(O_2)}# at equilibrium...?
Starting with #\tt{SO_3(g)}# at #\sf{"1.00 atm"}#, what will be the total pressure when equilibrium is reached with the following reaction at #\sf{"700 K"}#?
Please explain meaning of exp function how to use it .E.G in this (y = exp((sin^2x + sin^4 x + sin^6 x +........infinity)*ln2) ) part. ?
How calculate this ?
Write a balanced oxidation reduction equation, in acidic solution, for the below reaction?
Is there any easy to solve this sigma question Find the sum of 1^8 +2^8 +3^8 +4^8+......to n terms? I tried by taking (n+1)^9 -(n) ^9 but that method is too long. Please anybody suggest easier and short method.
Could someone please show me how to solve this with the provided information?
Why can't we do crossing over in inequalities?
Why is it easier to understand a poems's rhythm and rhyme patterns when you read it aloud?
If #0<(alpha),(beta),(gamma)<(pi)/2# prove that #sin(alpha)+sin(beta)+sin(gamma)>sin(alpha+beta+gamma)#?
If in triangle ABC #sin^(2)A+sin^(2)B+sin^(2)C=2# then the triangle is options are below?
Two forces whose resultant is 200N are perpendicular to each other. If one of them makes an angle of 60° with the resultant. Calculate it magnitude?
Could someone please explain to me how to solve this?
Could someone please explain the answer to this question to me?
How many numbers between 100 to 10000 which are in the form #n^3# ?
Find possible answers to the following differential equation #ddotx+κx=0#?
Prove by vector method that #sinA/a=sinB/b=sinC/c#?
What is the largest number of zeroes that can occur at the end of #1^n+2^n+3^n+4^n# for any positive integer n?
If m is any positive integer then the possible value of #sqrt(m+sqrt(m+sqrt(m+...)))-sqrt(m-sqrt(m-sqrt(m-...)))# is?
Let the number of digits of #2^2005# be x and that of #5^2005# be y then the possible value of x+y=?
#1+2*2!+3*3!+ ... + n*(n!)=#?
How do I find the mean of the data set #{x_1,x_2,....,x_25}# given that #sum_(i=1)^25x_i^2=2568.25# and the standard deviation is #5.2#?
How do I prove that #sum_(i=1)^n(x_i-mu)^2=sum_(i=1)^n(x_i)^2-nmu^2#?
Let a, b, c be three numbers in G. P . And we take theirs log (eg. Log a, Log b,Log c) is it always true that their log will be in A. P?
When the length of simple pendulum is dubuled ; find the ratio of new frequency to old frequency?
The max value of #5cosα+3cos(α+π/3)+3 # is?
How to find the velocity of two objects moving apart at relativistic speeds?
The position vectors of the points A, B, C of a parallelogram ABCD are a, b, and c respectively. How do I express, in terms of a, b and, the position vector of D?
What is the option?
How to solve this ?
What will be the answer?
Which one in this reaction is endothermic and which one is exothermic : A + B + Heat ⇌ C + D + E ?
If #\tt{\DeltaG°_(f,NO_2(g))=31.3" kJ"//"mol"}# and #\tt{\DeltaG°_(f,NO(g))=86.6" kJ"//"mol"}# at 298 K, then calculate #\tt{K_p}# at 298 K?
Calculate the final equilibrium concentrations (complex ion reaction)?
Establish the identity. ln |cot u| = ln |cos u| - ln |sin u| ____________________ Could someone please explain to me how to solve this?
Establish the identity. ((cot^2 x)/(csc(x)-1)) = (1+sin(x))/(sin(x)) = ____________________ Could someone explain to me how to solve this?
The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, θ). xy = 1 Answer choices: A) r sin 2θ = 2 B) 2r sin θ cos θ = 1 C) r^2 sin 2θ = 2 D) 2r^2 sin θ cos θ = 1 Could you explain to me how to solve this?
The max value of 4sin^2x+3cos^2x is Options are 4,3,7and 5?
If a steel cable holding a cable car has stress xkpa. If four more cables are attached to the car,what is the stress on each cable?1) x/4. 2)x/5 3)x/3
How do I find the First half equivalence point pH and the second half equivalence point pH of kmno4+h2c2o4+h2so4 titration ?
What is: am^2(2am + a + m/b^2) ?
Find theta in degrees??
Find csc theta?
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