Proving Identities
Topic Page
Proving IdentitiesQuestions
- What does it mean to prove a trigonometric identity?
- How do you prove #\csc \theta \times \tan \theta = \sec \theta#?
- How do you prove #(1-\cos^2 x)(1+\cot^2 x) = 1#?
- How do you show that #2 \sin x \cos x = \sin 2x#? is true for #(5pi)/6#?
- How do you prove that #sec xcot x = csc x#?
- How do you prove that #cos 2x(1 + tan 2x) = 1#?
- How do you prove that #(2sinx)/[secx(cos4x-sin4x)]=tan2x#?
- How do you verify the identity: #-cotx =(sin3x+sinx)/(cos3x-cosx)#?
- How do you prove that #(tanx+cosx)/(1+sinx)=secx#?
- How do you prove the identity #(sinx - cosx)/(sinx + cosx) = (2sin^2x-1)/(1+2sinxcosx)#?
- How do you prove the identity #tan^2x/(secx+1)= (1-cosx)/cosx#?
- How do you prove the identity #(tanx)/(cscx + cotx) = secx - 1#?
- How do you prove that #(1 + tan theta)[1 + tan(1/4 pi - theta)] = 2#?
- How do you prove that #cos(theta)csc(theta)=cot (theta)#?
- How do you prove that #{(tanx + secx - 1)/(tanx - secx + 1)} = (1+sinx)/cosx#
- How do you prove that #(1+tanx)/(sinx+cosx)=secx#?
- How do you prove that #secx - cosx = tanx * sinx#?
- How do you prove that #(tanx)(cosx)=cscx#?
- How do you prove the identities #Cosx/secx+sinx/cscx=sec^2x-tan^2x#?
- How do you prove #(sinx+cosx)/sinx - (cosx-sinx)/cosx = sec x csc x#?
- How do you prove #tan^2x/(Secx+1)+1 = secx#?
- How do you prove that #Cosx(Tanx+Cotx) = cscx#?
- How do you prove #sin(x+y)*sin(x-y)=(sinx)^2-(siny)^2#?
- How do you verify #sinx + cosx cotx = cscx#?
- How do you prove the identity #[1-sinx]/secx = (cos^3x)/(1+sinx)#?
- How do you prove: #cotx-cosx=cotx(1-sinx)#?
- How do you prove #(sinx+cosx)^2 + (sinx-cosx)^2 = 2#?
- How do you prove #(1- cosx)/sinx = tan(x/2)#?
- How do you solve: #sin2x - sinx = 0#?
- How do you prove #(1 + sinx + cosx)/(1 + sinx - cosx) = (1 + cosx)/sinx#?
- How do you prove that #(sinx-cosx-1)/(sinx+cosx-1)=(cosx+1)/sinx#?
- How do you prove #1- [(cos^(2)x)/(1+sinx)]= sinx#?
- How do you prove #sinx + cosx = -1#?
- How do you prove that #(1-cosx)/sinx = sinx/(1+cosx)#?
- How do you prove: #cosx- (cosx/(1-tanx))= (sinxcosx)/(sinx-cosx)#?
- How do you prove #(sinx + cosx)^2=1 + sin2x#?
- How does #[(sinx/cosx) +(cosx/sinx)]# equal #sinx^2+cosx^2#?
- How do you prove #tanx + (cosx)/(1+cosx) = secx#?
- How do you prove that #(1 + tan(x/2)) / (1 - tan(x/2))= tan x + sec x#?
- How do you simplify #(1-tan^2(x)) /( 1+tan^2(x))#?
- How do you solve #tan(x+ y) = (tan x + tan y) / (1 - tan x tan y)#?
- How do you prove #(tan x / (1 - cot x)) + (cot x / (1 - tan x)) = 1 + sec x csc x#?
- How do you prove the identity #tan (x-pi/4)= (tan x - 1)/(1 + tan x)#?
- How do you prove the following trig identity: #tan(x + 45°) - tan(45° - x) ≡ 2tan2x#?
- How do you prove #tan(x + (pi/2)) = -cotx#?
- How do you prove #cos2x= (1-tan^2(x))/ (1+tan^2(x))#?
- How do you prove that #cosx/(1-sinx) - 1/cosx = tanx#?
- How do you show the #secx + 1 + (1 - tan^2x)/(secx -1) = cosx/(1 - cosx)#?
- How do you prove the identity #1 / (1- cosx) + 1/ (1+ cosx) = 2 csc^2x#?
- How do you prove #((1+cosx) / sinx) + (sinx / (1 + cosx)) = 2 csc x#?
- How do you simplify the identify #sin^2x/(1-cosx) = 1+cosx#?
- How do you prove #(1-cosx)(1+secx)=sinxtanx#?
- How do you prove #(cscx + cotx)^2 = (1 + cosx) / (1 - cosx)#?
- How do you prove the identity: #(1+cosx+sinx)/(1-cosx+sinx) = (1+cosx)/(sinx)#?
- How do you simplify the identity: #(secx-1)/(1-cosx)=secx#?
- How do you prove #[cosx/(1-sinx)] + [(1-sinx)/cosx]=2secx#?
- How do you verify #(1/(sinx+1))+(1/(cscx+1))=1#?
- How do you prove #1-cosx^2/(1+sinx)= sinx#?
- How do you prove #(1+cosx)(1-cosx)=sin^2x#?
- How do you prove: #cos (x)/(1+sin (x)) + (1+sin (x))/cos (x) = 2 sec (x)#?
- How do you verify #(sin x)(tan x cos x - cot x cos x) = 1 - 2 cos2x#?
- How do you prove #(sinx + cosx)(tanx + cotx)=secx + cscx#?
- How do you prove #[(cotx+1)/(cotx-1)]=[(1+tanx)/(1-tanx)]#?
- How do you verify trigonometric Identities: #cot^2 x +csc^2 x = 2csc^2 x - 1#?
- How do you prove # [(1)/(1-sinx)]+[(1)/(1+sinx)]=2sec^2x#?
- How do you prove #Sinx/Cosx+Cosx/Sinx = (Sin^2xCos^2x)/(CosxSinx)#?
- How do you prove #(cosx) / (cscx - 2sinx) = (tanx) / (1-tan^2x)#?
- How do you prove #[(2tanx)/(1-tan^2x)]+[(1)/(2cos^2x-1)]= (cosx+sinx)/(cosx-sinx)#?
- How do you prove #2tan(x)sec(x) = (1/(1-sin(x))) - (1/(1+sin(x)))#?
- How do you prove #cos4x=1-2sin^2(2x)#?
- How do you prove #cos^4(x)-sin^4(x)=cos2x#?
- How do you prove #(tan x + 1) / (tan x -1) = (sec x + csc x) / (sec x - csc x)#?
- How do you prove #(cos^2x) / (sin^2x) * (1) / cos^2x = csc^2x#?
- How do you prove #(tan(x)-1)/(tan(x)+1)= (1-cot(x))/(1+cot(x))#?
- How do you prove #(1 - sin2x) /(cos2x) = (cos2x) / (1 + sin2x)#?
- How do you prove #1+1/tan^2x = 1/sin^2x#?
- How do you prove #sin3x = 3sinx - 4sin^3x#?
- How do you prove #Cosx + (sinxtanx) = secx#?
- How do you prove #sin4x = 4sinxcos^3x - 4sin^3xcosx#?
- How do you prove #(1 - tanx) / (1 + tanx) = (1 - sin2x) / (cos2x)#?
- How do you prove #(sin x+ 1) / (cos x + cot x) = tan x#?
- How do you prove #(1 + tan^2x)/(1-tan^2x) = 1/(cos^2x - sin^2x)#?
- How do you prove #cot^2 x/ (1+csc x) = (1-sin x)/ sin x#?
- How do you prove #(secx+tanx)((1-sinx)/cosx)=1#?
- How do you prove #(cot A + 1)^2 = csc^2 A + 2 cot A#?
- How do you prove : #Sin4x - cos4x + 1 = 2Sin2x#?
- How do you prove the identity #(sectheta- tantheta)^2 = (1-sintheta)/(1+sintheta)#?
- How do you prove #(2 cos 3x)/(sin 4x - sin 2x)=cscx?
- How do you verify the identity #4 csc 2x = 2 csc^2x tan x#?
- How do you verify the identity #cot(0-(pi/2)) = -tan 0#?
- How do you verify the identity: #tan (x + pi/2) = -cot x#?
- How do you verify the identity: #[sin(x) / csc(x) - 1 ] = [ sin (x) + 1 / cot^2 (x) ]#?
- How do you verify the identity: #(cot x) / (csc x +1) = (csc x -1) / (cot x)#?
- How do you verify the identity: #1 - cos 2x = tan x sin 2x#?
- How do you verify the identity: #sec x - cos x = sin x tan x#?
- How do you verify the identity #[(cosx cotx)/1-sin x]-1=cscx#?
- How do you verify the identity #cosxcotx = cscx - sinx#?
- How do you verify the identity #cos 4x + cos 2x = 2 - 2 sin^2 2x - 2 sin^2 x#?
- How do you verify the identity #(1 + tan2u)(1 - sin2u) = 1#?
- How would you verify the identity #(secx-cosx+tanx)/(tanx+secx)=sinx#?
- How do you verify the identity #cos t/(1-sin t) = sec t+tan t#?
- How do you verify the identity: #(secx + cscx )/( sinx + cosx) = cotx + tanx#?
- How do you verify the identity #(tanx - secx + 1)/(tanx + secx - 1) = cosx/(1 + sinx)#?
- How do you verify the identity #cos(α - β) - cos(α + β) = 2 sin α sin β#?
- How do you verify the identity: #cosx cscx/cot^2x=Tanx#?
- How do you verify the identity #(csc x - sin x)(sec x - cos x)(tan x + cot x) = 0#?
- How do you verify the identity #(1+ sinx)/(cos x) + (cos x)/(1+sin x) = 2 sec x?#
- How do you verify the identity: #(1-(cosx-sinx)^(2))/cosx=2sinx#?
- How do you verify the identity #(2tanx)/(1+tan^2x) =sin2x#?
- How do you verify the identity #(sin2x)/(sinx) = 2/(secx)#?
- How do you verify the identity #cosx+sinxtanx=sec x#?
- How do you verify the identity: #sin2x=(tanx)(1+cos2x)#?
- How do you verify the identity #(tan x)/(Sec x-1)=(sec x+1)/ (Tan x)#?
- How do you verify this identity: #(cosx)/(1+sinx) + (1+sinx)/(cosx) = 2secx#?
- How do you verify the identity #cot (theta-pi/2)=-tan theta#?
- How do you verify the identity: #sin(A+B) = (tanA+tanB)/(secA secB)#?
- How do you verify the identity #sec^2(x/2)= (2secx + 2)/(secx + 2 + cosx)#?
- How do you verify the identity: #(cot(t)-tan(t))/(sin(t)cos(t)) = csc^2 (t) - sec^2 (t)#?
- How do you verify the identity: #(sinx+cosx)^2=1+sin2x#?
- How do you prove the identity #(sin^3 x + cos^3 x)/(sin x +cos x) = 1 - sin x cosx#?
- How do you verify the Identity: #(1+cos x+ sinx)/(1+cos x-sin x)=sec x+tan x#?
- How do you verify the identity #(tan x + cos x) /( 1+sin x )= sec x#?
- How do you verify the identity #sin4x= 4sinxcosx(1-sin^2x)#?
- How do you verify the identity # tan(x/2 + pi/4) = secx + tanx#?
- How do you verify the identity #tanx+cotx=2csc2x#?
- How do you verify the identity #sin(pi/2 + x) = cosx#?
- How do you verify the identity: #cos^2x-sin^2x=1-2sin^2x#?
- How do you verify the identity of: #cos^3x sin^2x=(sin^2x-sin^4x)cosx#?
- How do you verify the identity. #tan x + pi/2= -cot x#?
- How do you verify the identity #cotx- pi/2 = -tan x#?
- How do you verify #4tan^4 + tan^2x-3 = sec^2x (4tan^2x - 3)#? kinda hard please with all the steps thanks!?
- How do you prove that #sin(2A) = (2tan(A))/(1 + tan^2(A))#?
- How do you prove that #cot^3x/cscx = cosx(csc^2x-1)#?
- How do you prove #sec^6x(secxtanx) - sec^4x(secxtanx) = sec^5xtan^3x#?
- How do you prove #(sinx+cosx)(Tanx+cotx)=secx+cscx#?
- How do you prove #(Sec x/Sin x)-(Sin x/Cos x)=Cot x#?
- How do you prove #sin(pi+x) = - sinx#? Double Angle Question: 1.) Express sin x/2 in terms of cos x Thank you so much!?
- How do you prove #(1 + sin 2A) / (cos 2A) = (cos A + sin A) / (cos A - sin A)#?
- How do you prove #tan x - 1 = (sin^2 x - cos^2 x)/(sin x cos x + cos^2 x)#?
- How do you prove #10sin(x)cos(x)=6cos(x)#?
- How do you prove #cot^2x - cos^2x = cot^2cos^2#?
- How do you prove # secx(csc^2x)-csc^2x = secx / (1 + cosx)#?
- How do you prove #(1-cos^2)(1+cos^2)= 2sin^2-sin4#?
- How do you prove #tan^2xsin^2x=tan^2x + cos^2x-1#?
- How do you prove #sinθ/cos(0.5θ) = 2sin(0.5θ)#?
- How do you prove #(CosA + CosB)^2 + (SinA + SinB)^2 = 2[1 + cos(A - B)]#?
- How do you prove #sinx cosx tanx = 1-cos^2x #?
- How do you prove #cos^2x - sin^2x = 2cos^2x - 1#?
- How do you prove #sin x = 1 - 2 cos^2x#?
- How do you prove #sinx+cosx=(2sin^2x-1)/(sinx-cosx)#?
- How do you use trigonometric identities to transform one side of the equation into the other #Cos theta Sec theta = 1#?
- How do you prove #tan(2A)/(1+sec(2A))=tan(A)#?
- How do you prove #sin(π+x)+cos(π/2-x)+tan(π/2+x)= -cotx#?
- How do you prove #(sinx+cosx)^2 = 1+2sinxcosx#?
- How do you prove #(1 + csc A)(1 - sin A) = cotA cosA#?
- How do you prove #cos(x) / (1-sin(x)) = sec(x) + tan(x)#?
- How do you prove #tan^2(x) / (sec(x) - 1) = (sec(x) + 1)#?
- How do you prove #cosA/(1-tanA) = (sinA)/(1-cotA)#?
- How do you prove #(cotA-1)/(cotA+1) = (cosA-sinA)/(cosA+sinA)#?
- How do you prove #1/(1-cosA) + 1/(1+cosA)= 2+2cot^2A#?
- How do you prove #1/(1-cos)-1/(1+cos)= 2csc^2#?
- How do you prove #sin^3 x - cos^3 x = (1 + sin x cos x )( sin x cos x )#?
- How do you prove #(1+sinx)^2 + (1-sinx)^2 = 4 - 2 cos^2x#?
- How do you prove #(sinx + cosxcotx)/cotx = secx#?
- How do you prove # (cosx - sinx)/(cos^3x - sin^3x) = 1/(tanxcos^2x + 1)#?
- How do you prove #sin^4x-cos^4x=sin^2x-cos^2x#?
- How do you prove #(sinx-2sin2x+sin3x)/(sinx+2 sin2x+sin3x)= -tan^2(x/2)#?
- How do you prove #(1+ cosx)/(sinx + tanx)=(1 + cos2x )/ sin2x#?
- How do you prove #(1-tanx)/(1+tanx) = (1-sin2x)/(cos2x)#?
- How do you prove #4tanxsecx=((1+sinx)/(1-sinx))-((1-sinx)/(1+sinx))#?
- How do you prove #Cos^2 2A-cos^2 A=sin^2A-sin^2 2A#?
- How do you prove #(2sin^2x -1) /( sinxcosx) = tanx - cotx#?
- How do you prove #(cosx/(1 + sinx)) + (cosx/(1 - sinx)) = 2secx#?
- How do you prove #((sin^2x + 2cosx - 1)/(2 + cosx-cos^2x)) = 1/(1 + secx)#?
- How do you prove #tan² x(1 + cot² x) = sec² x#?
- How do you prove #1 + sin² x = 1/sec² x#?
- How do you prove # ( 1 / (secx - tanx) ) - ( 1 / (secx + tanx ) ) = 2 tan x#?
- How do you prove # (cosA - cotA) / ( 1 - sinA) = - cotA#?
- How do you prove # (secA - 1) / (sin^2A) = (sec^2A) / (1 + secA)#?
- How do you prove #sin(A+B) * sin(A-B) = sin^2 A - sin^2 B#?
- How do you prove #(cos W - sin2W) / cos(2W) + sinW-1 = cot W#?
- How do you prove #sin(2W )/ (1-cos(2W)) = 2csc2W - tanW#?
- How do you prove #cos(x-y)/cos(x+y)=(cot x +tan y)/( cot x- tan y)#?
- How do you prove #sin^2(x)cos^2(x) = (1-cos(4x))/8#?
- How do you prove #(cos2A)/sinA + (sin2A)/cosA = csc A#?
- How do you prove #cos (2x) / (1-sin 2x) = (1 + tan 2x) / (1-tan 2x)#?
- How do you prove # cotA+tan2A= cotAsec2A#?
- How do you verify #(1-cos2t)/ sin t= 2 sin t#?
- How do you verify #sec^2(x)+csc^2(x)=(sec(x)csc(x))^2#?
- How do you verify #2cos^2(x/2)tanx = tanx+sinx#?
- How do you prove #Tan x+Cot x =Sec x Csc x#?
- How do you prove # [sec(x) + csc(x)] / [1 + tan(x)] = csc(x)#?
- How do you verify #(1+cosx)(1-cosx) = sin^2 x#?
- How do you verify #sec^2 x/ tan x = sec x csc x#?
- How do you verify #csc x cos (pi/2 - x) = 1#?
- How do you verify #sin^2 x + sin^2(pi/2 -x) = 1#?
- How do you prove #(csc(t)-1)(csc(t)+1)=cot^2(t)#?
- How do you prove #csc^2(x)-cot^2(x)=1#?
- How do you prove #cscx /(1 + cscx) + cscx /(1 - cscx) = (- 2sinx) / cos^2x#?
- How do you prove #cot^2 A csc^2 A - cot^2 A = cot^4 A#?
- How do you prove #csc2x = 1/2(secx)(cscx)#?
- How do you prove #csc^4x-cot^4x=csc^2x+cot^2x#?
- How do you prove #(1-tanx)^2=sec^2x-2tanx#?
- How do you prove #tanx/secx + cotx/cscx = sinx+cosx#?
- How do you prove #(sec(t)+1)(sec(t)-1)=tan^2(t)#?
- How do you prove #(sec(u) - tan(u))(csc(u)+1)=cot(u)#?
- How do you prove #(csc(-t)-sin(-t))/sin(t) = -cot^2(t)#?
- How do you prove #sin theta cot theta =cos theta#?
- How do you prove #sin theta sec theta- tan theta#?
- How do you prove #tan theta cot theta=1#?
- How do you verify the identity #(csc x - cot x)^2 = (1 - cos x)/(1+cosx)#?
- How do you verify # cos ^2 u - sin ^2 u = 1 - 2sin^2 u#?
- How do you verify #cos ^2 u - sin ^2 u = 2 cos^2 u -1#?
- How do you verify #sin x(1- 2 cos ^2 x + cos ^4 x) = sin ^5 x#?
- How do you verify #csc ^4 -2csc ^2 x +1 = cot^4 x#?
- How do you verify #2 + cos^2 x - 3 cos ^4 x = sin^2 x(2 +3 cos^2 x)#?
- How do you verify #cos^4x - sin^4x = cos^2x - sin^2x#?
- How do you verify #(1-tan^2)/(1+tan^2)=cos^2 - sin^2#?
- How do you verify #cot^2x * sec^2x = csc^2x#?
- How do you verify #(cos^2x) / (sin^2x) * (1) / cos^2x = csc^2x#?
- How do you verify #(csc(t) + cot(t)(csc(t) - cot(t)) = 1#?
- How do you verify #sin^2(x) = (1/2)(1-cos2x)#?
- How do you verify #8sin²xcos²x = 1-cos^4(x)#?
- How do you verify #-(1/2)sec²(x) = -2sin²(x)csc²(2x)#?
- How do you verify #(sect + csct)/(1 + tan^2t) = (sintcost + cos^2t)/ sint#?
- How do you verify #(cot theta - tan theta)/(cot theta + tan theta) = cos 2 theta#?
- How do you verify #sin^2 theta cos ^2 theta = 1/8 [1-cos(4 theta)]#?
- How do you verify # (sinx + tanx) / cosx + 1 = tanx#?
- How do you verify #cos^2x + tan^2x - 1 / cos^2x + sin^2x = 0#?
- How do you verify #cos(x) / (1-sin(x)) = sec(x) + tan(x)#?
- How do you verify #tan^2(x) / (sec(x) - 1) = (sec(x) + 1)#?
- How do you verify #(1-cos2x)/ tanx = sin2x#?
- How do you verify #(1+tan x) / (1+cot x) = 2#?
- How do you verify #cos^4x - sin^4x = 1 - 2sin^2x#?
- How do you verify # 1 + tanxtan2x = sec2x#?
- How do you verify #(1+sinx+cosx)^2 = 2(1+sinx)(1+cosx)#?
- How do you verify # cot (x/2) = tan x/(sec x-1)#?
- How do you verify #tan(x/2) - cot (x/2) = -2 cot x#?
- How do you verify #8sin²xcos²x = 1-cos(4x)#?
- How do you verify #-(1/2)sec²(x) = -2sin²(x)csc²(2x)#?
- How do you verify #(1+cos2x)/(sin2x) = cotx#?
- How do you prove #cos2θ = cos²θ - sin²θ#?
- How do you prove #cos2θ = 1-2sin²θ#?
- How do you prove #cos2A = cos^2 A - sin^2 A#?
- How do you prove #(sinx/(cscx-1))+(sinx/(csc+1))=2tan^2x#?
- How do you prove #(cosx/(1+sinx))+((1+sinx)/cosx)=2secx#?
- How do you prove #-tan^2x+sec^2x=sec^2xcos^2x#?
- How do you prove #cosx-cosxsin^2x=cos^3x#?
- How do you prove #(1-sin^2theta)(1+cot^2theta)=cot^2theta#?
- How do you verify #(1 + cos theta)(1 - cos theta) = sin^2 theta#?
- How do you verify #sin^2 - cos^2 = 2sin^2 theta - 1#?
- How do you prove #1 - 2 sin^2r + sin^4r = cos^4r#?
- How do you prove #csc^2xtan^2x-1=tan^2x#?
- How do you prove #1/(sinxcosx) - cosx/sinx = tanx#?
- How do you prove #cosx - sinx - cos^3x/cosx = sin^2x - tanx#?
- How do you prove # (cscx+cotx)(cscx-cotx)=1#?
- How do you prove #(tan u + cot u)(cos u + sin u) = csc u + sec u#?
- How do you prove #(1+tan x) / (1+cot x) = 2#?
- Question #11cd8
- How do you verify #cot^2 x/ (1+csc x) = (1-sin x)/ sin x#?
- How do you verify #tan^5 x = tan ^3 x sec^2 x - tan^3 x#?
- How do you verify #(sin B + cos B)(sin B - cos B)= 2 sin^2B - 1#?
- How do you verify #cotx-tanx=2cot2x#?
- How do you verify #sec(x+y)= (secx secy)/(1-tanxtany)#?
- How do you verify #2csc2x=secxcscx#?
- How do you verify #tan^2(x) / sec(x) = sec(x) - cos(x) #?
- How do you verify #sin x + cos x + tan x sin x = sec x + cos x tan x#?
- How do you verify #sinx/(1-cosx) + (1-cosx)/sinx = 2cscx#?
- How do you verify #1-tan^2x=2-sec^2x#?
- How do you verify #cosx/(1-sinx)= secx+tanx#?
- How do you verify #cosx-cosxsin^2x=cos^3x#?
- How do you verify #[(cosx - 1)^2] / [sin^2 x] = [1 - cos x] / [1 + cos x]#?
- How do you verify #tan^2θ- sin^2θ=tan^2θsin^2θ#?
- How do you prove the identity #sin x = 1 - 2 cos² x#?
- How do you prove the identity #(1-cos2x) / tanx = sin2x#?
- How do you prove the identity #(sin^2)x (cos^2)x=1 #?
- How do you prove the identity #(sin^4)x-(cos^4)x#?
- How do you prove the identity #cos^2theta(1 + tan^2theta) = 1#?
- How do you prove the identity #sec^2(x)-tan^2(x)=1#?
- How do you prove the identity #cot(x)+sec(x)=(cos(x)+tan(x))/sin(x)#?
- How do you prove the identity #Sin2x = 1#?
- How do you prove the identity #cos2x = (cotx - sin2x) / cotx#?
- How do you prove the identity #tan^4x+tan^2x+1=(1-cos^2x)(sin^2x)/(cos^4x)#?
- How do you prove the identity #tan2XcotX=3#?
- How do you prove the identity #Sec^2(x) + 2 cos(x) + 1/2*csc^2(x) = 5 #?
- How do you prove the identity #(csc theta - 1) / cot theta = cot theta / (csc theta + 1)#?
- How do you prove the identity #-sin^2x = 2cosx - 2#?
- How do you prove the identity # Cos2x-sinx=0#?
- How do you prove the identity #(tan x + sec x - 1) / (tan x - sec x +1) = tan x + sec x#?
- Show that sin 3x = 3 sin x - 4sin^3 x ?
- Prove that tan x = (sin 2x)/(1+cos 2x) . Hence find the value of tan 15° and tan 67.5° , giving your answer in term of surds in simplest form?
- How do I show that #cos theta/ (1 + sin theta)# + #(1+ sin theta)/cos theta# = 2 sec #theta# ?
- How do you prove #cscx = sec(pi/2 - x)#?
- How do you prove # (csc+cot)(csc-cot)=1#?
- How do you prove # (sin+cos)(tan+cot)=sec+csc#?
- How do you prove #sec^4(x)-csc^2(x)=tan^2(x)-cot^2(x)#?
- Question #75d62
- Prove that #cos 3x = 4cos^3 x - 3cos x# ?
- Show that #(2cos^2(x/2)tanx)/(tanx) = (tanx+cosxtanx)/(tanx)#?
- How do you prove #sin x + cot x cos x = csc x#?
- How do you prove #sec x - cos x = sin x tan x#?
- How do you prove #tan (2x)/tan x=2#?
- How do you prove # 1/sec^2 x + 1/csc^2 x =1#?
- How do you prove # sin x/(1-cos x) + (1-cos x)/sin x = 2 csc x#?
- How do you prove #cos(x)tan(X) + sin(x)cot(x) = sin(x) + cos^2(x)#?
- How do you prove #csc x tan x = sec x#?
- How do you prove #cos^2A csc A sec A = cot A#?
- How do you prove #1/(sec D - tan D) + 1/(sec D + tan D) = 2 sec D#?
- How do you prove #csc B/cos B - cosB/sin B = tan B#?
- How do you prove #cos^2β-sin^2β=2cos^2β-1#?
- How do you prove #cos[(pi/2)-x]/sin[(pi/2)-x]=tanx#?
- How do you prove #sec^2((pi/2)-x)-1=cot^2x#?
- How do you prove #sinx(1-2cos^2x+cos^4x)=sin^5x #?
- How do you prove #ln(secθ)=-ln(cosθ) #?
- How do you prove #sin[x+(pi/6)] + sin[x-(pi/6)] = (sqrt3)/2#?
- How do you verify #1/(secx+1 )= cot^2xsecx-cot^2x#?
- How do you verify #((1+sinx)/(cosx))=((cosx)/(1-sinx))#?
- How do you verify #cos^2(x)-sin^2(x)=1-2sin^2(x)#?
- How do you verify #cot^4 x+ cot^2x = csc^4 x - csc^2 x#?
- How do you verify # sec(x)-cos(x)=sin(x)tan(x)#?
- How do you verify #(secx - cscx)/(sin^2 x - cos^2 x) = (secx*cscx)/(cos(-x)-sin( -x))#?
- How do you verify #(sin^3 t + cos^3 t)/(cos2t) = (sec^2 t - tant)/(sect - tant*sect)#?
- How do you verify #(sec(x) - 1)/(1 - cos(x))=sec(x)#?
- How do you verify #((2cos^2C + 3sinC – 3)/(cos^2C)) = ((2sinC-1)/(1+sinC))#?
- How do you verify #sec^4x-sec^2x=tan^4x+tan^2x#?
- How do you verify #(1-cos^2x)(1+cos^2x)=2sin^2x-sin^4x#?
- How do you verify #sin^2xsec^2x+sin^2xcsc^2x=sec^2x#?
- How do you verify #(tanx/(1+cosx)) + (sinx/(1-cosx))=cotx + secxcscx#?
- How do you verify # (1-sinx)/(1+sinx)=sec^2x-2secxtanx+tan^2x#?
- How do you verify #sinx/(1-cosx) - (sinxcosx)/(1+cosx)=cscx(1+cos^2x)#?
- How do you verify #(1+cosx)/(1-cosx) - (1-cosx)/(1+cosx)=4cotxcscx#?
- How do you verify # (1+sinx)/(1-sinx) - (1-sinx)/(1+sinx)=4tanxsecx#?
- How do you verify #2cot 2x = cot x - tan x#?
- How do you verify #(sec x + csc x) (sin x + cos x) – 2 – cot x tan x#?
- How do you verify #(1-cos(x)) / sin(x) = csc(x) - cot(x) #?
- How do you verify #(1 - cos x) / (1 + cos x) = (csc x - cot x)^2#?
- How do you verify # (sin x/ (1 - cos x)) + ((1 - cos x)/ sin x) = 2csc x#?
- How do you verify #cos^4 x - sin^4 x = cos^2 x - sin^2 x#?
- How do you verify #cos^3 * sin^2 x = (sin^2 x - sin^4 x)cos x#?
- How do you verify #1/(secx -1) + 1/(secx +1) = 2cotxcscx#?
- How do you verify #tan^2x-tan^2x*sin^2x=sin^2x#?
- How do you verify #(sin^2x - cos^2x)/(sinx + cosx)=sinx-cosx#?
- How do you verify #sin^4x-cos^4x=1-2cos^2x#?
- How do you verify #(tanx) /(1-cotx) + (cotx) /(1-tanx) = 1 +secx cscx#?
- How do you verify # (-1) / (tanx - secx) = (1 + sinx) / (cosx)#?
- How do you verify #(1 - cosx) / (1 + cosx) = (cotx - cscx)²#?
- How do you verify #(sinx + cosx) / (sinx - cosx) = (secx + cscx) / (secx - cscx)#?
- How do you verify #cos4x = 8cos(^4)x - 8cos²x + 1#?
- How do you verify #(sin^3x - cos^3x) / (sinx - cosx) = (1 + sin2x) / 2#?
- How do you verify #-cot(x/2) = (sin2x + sinx) / (cos2x - cosx)#?
- How do you verify #sin^2(theta)+cot^2(theta)sin^2(theta)=1#?
- How do you verify #csc^2(theta)(1-cos^2(theta))=1#?
- How do you verify #tan(theta)/cot(theta)=tan^2(theta)#?
- How do you simplify #csc θsec θ - cot θ#?
- How do you verify #(1-cos^2x)(1+(1/tan^2x)) = 1#?
- How do you verify #(cotx/sec^2x) + (cotx/csc^2x)= cotx#?
- How do you simplify #tan^2 x- cot^2x#?
- How do you simplify #2cos^2x + cosx -3#?
- How do you simplify #1 - 125tan^3s#?
- How do you simplify #1 – sec² t#?
- How do you simplify #(csc² t - cot² t) / sin² t#?
- How do you simplify #(sin² t - cos² t sin² t) / sin² t#?
- How do you verify #(cos(x))(cos(x)) = 1-sin^2(x)#?
- How do you simplify #(sin^2x-1)/(1+sin^2x)#?
- How do you simplify #(cotx/sec^2x)+(cotx/csc^2x)#?
- Question #e754c
- How do you prove #(sinx+cosx)^4 = (1+2sinxcosx)^2#?
- How do you prove #[(sec^6)x] (secxtanx) - [(sec^4)x] (secxtanx) = [(sec^5)x] [(tan^3)x] #?
- How do you prove #tanx + cotx = secx cscx#?
- How do you prove #(cosx-sinx)/(cosx+sinx)=(cos2x)/(1+sin2x)#?
- How do you prove # -2cos^2x tan(-x)=sin2x#?
- How do you prove #(sinx - tanx)(cosx - cotx) = (sinx -1)(cosx -1)#?
- How do you prove #(sin^3x + cos^3x)/sin^3x = cscx/(1-cosx)#?
- How do you prove #(cosx+ 1)/ sin^3x = cscx/(1-cosx)#?
- How do you prove #sin^2x/ (cos^2 +3cosx+2) = (1-cosx)/ (2+cosx)#?
- How do you prove #(sinx - cosx)^2 +(sin x + cosx)^2 = 2#?
- How do you prove #(sin2x + sin2y)/(cos2x + cos2y) = tan(x + y)#?
- How do you verify #sin(x + pi/6) - cos(x + pi/3) = sqrt3 sin x#?
- How do you simplify #(1 - cos^2 theta)/(1 + sin theta) = sin theta#?
- How do you simplify #(1 + sec theta)/sec theta = sin^2 theta/(1 - cos theta)#?
- How do you simplify #sin(a - b)/sina x cosb = 1 - cota x tanb#?
- How do you simplify #sin theta (cot theta + tan theta) =sec theta#?
- How do you simplify #1- (sin^2 theta/ (1-cos theta))= -cos theta#?
- Question #d6fb5
- How do you use the trig identity #cos2x = cos^2 x - sin^2 x # to verify that #cos 2x = 2 cos^2 x -1#?
- How do you prove Trig Identity #1+tan^2 (x) = sec^2 (x)#?
- What basic trigonometric identity would you use to verify that #(sin x+1)/sin x=1+csc x#?
- How do you find cot x if sin x cot x csc x = √2?
- How do you prove # 1 + 1/(tan^2x) = 1/(sin^2x)#?
- How do you prove # cot^2 x +csc^2 x = 2csc^2 x - 1#?
- How do you prove #tan(x) = sin(2x)/[1+cos(2x)]#?
- How do you prove #secxcscx = sinx + cosxcotx#?
- How do you prove #cot2x = (1+cos4x) / (sin4x)#?
- How do you find tan (x+y) if tan x=5/4 and sec y=2?
- How do you prove #(sinx + tanx) / cosx + 1 = tanx#?
- How do you prove #(cos^2x + tan^2x ) / (cos^2x + sin^2x )-1= 0#?
- How do you prove #2tan(x)sec(x) = (1/(1-sin(x))) - (1/(1+sin(x)))#?
- How do you prove #cos(x) / (1-sin(x)) = sec(x) + tan(x)#?
- How do you prove # tan^2(x) / (sec(x) - 1) = (sec(x) + 1)#?
- How do you prove #csc x - sin x = cos x cot x#?
- How do you prove #cosx(tanx+secx)=sinx#?
- How do you prove #secx+sin^2x+cos^2x=secx#?
- How do you prove #(cos^4x - sin^4x)/sin^2x=cot^2x-1#?
- How do you prove #cos(x)tan(X) + sin(x)cot(x) = sin(x) + cos^2(x)#?
- How do you prove #1 + cot² x = csc² x#?
- How do you prove #sinx/(1-cosx) + (1-cosx)/sinx = 2csc x#?
- How do you prove #sin(x)(cos(x))/(cos^2(x) - sin^2(x)) = tan(x)/(1 - tan(x))#?
- How do you prove # (sin A + tan A) / (1+ cos A) = tan A#?
- How do you prove #(csc x - cot x)^2 = (1 - cos x)/(1+cosx)#?
- How do you prove #(1+tan x) / (1+cot x) = 2#?
- How do you prove #cot(x)cos(x)+sin(x)=csc(x)#?
- How do you prove #Sinx = 1/sinx - cosx/tanx#?
- How do you prove #tan^4 x + 2tan^2 x + 1 = sec^4 x#?
- How do you prove #tan(x/2)= sinx+cosxcotx-cotx#?
- How do you prove #(1 - sin2x) / (cos2x) = (cos2x) / (1 + sin2x)#?
- How do you prove #cos4x=1-2sin^2(2x)#?
- How do you prove #cot^2 x +csc^2 x = 2csc^2 x - 1#?
- How do you prove #cot^2 x +csc^2 x = 2csc^2 x - sin^2(2x)-cos^2(2x)#?
- How do you prove #sin^2 (x) + cos^2 (x) = 1# using other trigonometric identities?
- How do you prove #sin (2x) = 2sin(x)cos(x)# using other trigonometric identities?
- How do you prove #cos2x=cos^2x-sin^2# using other trigonometric identities?
- How do you prove #cos2x=1-2sin^2x# using other trigonometric identities?
- How do you prove that #cot^2x * sec^2x = csc^2x#?
- How do you prove that #(csc x - cot x)^2 = (1 - cos x)/(1+cosx) #?
- How do you prove # sec^2x-tan^2x =cos^2x+sin^2x #?
- How do you prove # (secx-tanx)(secx+tanx) =secx #?
- How do you prove # sec^2xcscx =sec^2x+csc^2x #?
- How do you prove # tan^2x-1 = 1+tanx #?
- How do you prove # sin(a+b) + sin(a+b) = 2sinacosb #?
- How do you prove # sin(a+b)cos(a+b) = (sina)^2 - (sinb)^2 #?
- How do you prove: #1- (sin^2x/(1-cosx))=-cosx#?
- How do you prove: # [(sinx/cosx) +(cosx/sinx)] = sinx^2+cosx^2#?
- How do you prove: #sin^2x/(1-cosx) = 1+cosx#?
- How do you prove: #Cosx + sinx tanx = secx#?
- How do you prove: #secx - cosx = sinx tanx#?
- How do you prove: # cosx*sinx=cosx+sinx#?
- How do you prove: # sinx/cosx + cosx/sinx = 1#?
- How do you prove: #2sinx = cosx#?
- How do you provle #cos (pi-x) =- cosx#?
- How do you simplify #cosx/(1+sinx) + (1+sinx)/cosx#?
- How do you verify #sin x + cos x * cot x = csc x#?
- How do you verify #(1 + csc x)(sec x - tan x) = cot x#?
- How do you verify #(sin x+cos x)^2=1+sin2x#?
- How do you verify #1 + cos 2a = 2/(1+ tan^2a)#?
- How do you verify #2(tan(2A)) * (2(cos^2(2A) - sin^2(4A)) = sin(8A)#?
- How do you verify #cos^2 2A = (1+cos4A)/2#?
- How do you prove #cos(pi/2 + theta) = -sin(theta)#?
- How do you prove #sin x csc (pi/2 - x)= tan x#?
- How do you prove #sec^2 x - cot^2 ( pi/2-x) =1#?
- How do you prove #cos^2x+cos^2( pi/2 - x ) =1#?
- How do you prove #csc (-x) / sec ( - x) =- cot x#?
- How do you prove #(sin x - sin y) / (cos x + cos y) + ( cos x - cos y) / ( sin x + sin y) = 0#?
- How do you prove #( tan A + tan B) / (1-tan A tan B) = (cot A + cot B ) / ( cot A cot B - 1)#?
- How do you simplify # sin(π/2 - x) cscx#?
- How do you prove #sin(pi/6 + x) + sin (pi/6 - x)= cosx#?
- How do you solve #Sin(x + pi/4) + Sin(x - pi/4) = -1#?
- How do you prove #tan (pi - x) = -tanx#?
- How do you prove #sin^(2)(x+π/4)-sin^(2)(x-π/4)=2sinx*cosx#?
- How do you prove #Cotx = -tan(x - pi/2)#?
- How do you prove #sin(pi/4 + x) = cos (pi/4 - x)#?
- How do you verify # tan (x+pi/2)= -cot x#?
- How do you verify #Cos 2x= 2 sin (x+pi/4) cos (x+pi/4)#?
- How do you verify #(tan^2)(sin^2)=tan^2+cos^2 - 1#?
- How do you prove #1/(1+sin) + 1/(1-sin) = 2sec^2# ?
- How do you prove #Sin^2-cos^2=2sin^2-1# ?
- How do you prove #(1+cosx)/sinx + sinx/(1+cosx) = 4#?
- How do you simplify #(sinx/(1-cosx))+((1-cosx)/sinx)#?
- How do you prove #cosx/(1+sinx)-2secx=cosx/(sinx-1)#?
- How do you simplify #secx(cosx+sinx)#?
- How do you verify #(cosx - sinx) ^ 2 + 2 sinx cosx = 1#?
- How do you verify #(1)/(cosx*sinx) - (cosx)/(sinx)=tanx#?
- How do you verify #(cosX+sinX)/(cscX+secX) = (cosX)(sinX)#?
- How do you verify #sinx/cosx + cosx/sinx = 1#?
- How do you verify #(1+tanx)/(1-tanx) = (cosx+sinx)/(cosx-sinx)#?
- How do you prove #Cosx + sinx tanx = secx#?
- How do you prove #cosx= 1/(cosx-sinx tanx)#?
- How do you prove #(secx)/(sinx)-(sinx)/(cosx)=cotx#?
- How do you prove #sinx/cscx + cosx/secx = sinx cscx#?
- How do you prove #(tan x)(cos x)=sin x#?
- Prove that #tanx/(1+secx)+(1+secx)/tanx=2secx#?
- Question #fa425
- How to prove that #sin (pi/2 - theta)# = #cos theta# ?
- Question #d432a
- Question #217eb
- Find the value of #(secx-1)(secx+1)# and #1-sin^2theta/tan^2theta#?
- Question #6a425
- How do you show #e^(it) = cos t + i sin t# ?
- Question #5bbf0
- Simplify the following?
- How do you prove #cos(x + pi/6) + sin(x + pi/3) = (sqrt 3)cos x#?
- How do you prove #2sin((5pi)/6)cos(pi/6)=sin120#?
- How do you prove #-sin( pi/3) = cos ((5pi)/6)#?
- How do you prove #cos(x-pi/6) = 1/2([sqrt3] cosx + sin x)#?
- Question #49c6e
- Question #4aefe
- Question #8331a
- Question #628c9
- How do you prove #sin(pi/2-theta) = cos theta #?
- How do you prove #cos(pi/2-theta)=sin theta #?
- How do you verify #cos (x - pi/2) = -sinx#?
- How do you verify # tan (pi - x) = -tanx#?
- How do you prove # cos(pi/3 + x) + cos(pi/3 - x) = cosx#?
- Simplify #(tanx+secx-1)/(tanx-secx+1)#?
- How do you simplify #sinx/(1 + sinx) - sinx/(1 -sinx)#?
- Question #9695c
- Question #b8301
- Question #7d905
- How do you prove #secx - cosx = tanx * sinx#?
- How do you prove # 2 arcsin x = arccos(1 − 2x^2)#?
- How do you verify # tan^2(a) - sin^2(a)=tan^2(a)sin^2(a)#?
- How do you verify #(sin(x)cos(y)+cos(x)sin(y))/(cos(x)cos(y)-sin(x)sin(y)) = (tan(x)+tan(y))/(1-tan(x)tan(y))#?
- How do you verify #(1-cos^2y + sin^2y)^2 + 4 sin^2y cos^2y= 4 sin^2y#?
- How do you verify #tanx / (1-cosx) = cscx (1+secx)#?
- How do you verify #cos^2x + cos^2(pi/2 - x) = 1#?
- How do you verify #tan(A/2)=cscA-cotA#?
- How do you verify #sin^2 ( x/2) = (cscx-cotx)/(2cscx)#?
- How do you verify #(sin z + cos z) (tan z + cot z) = sec z + csc z#?
- How do you verify #(1+csc(x))/(cot(x)+cos(x)) = sec(x)#?
- How do you verify #cos (pi/2 -x) cos x = cos x#?
- How do you verify #sin x + cos x times cot x = csc x#?
- How do you verify #sin^2 (-x) / tan^2 x = cos^2 x#?
- How do you verify #(tan(x)/(1 + sec(x))) + (1+sec(x)/tan(x)) = 2csc(x)#?
- How do you verify #csc2(theta)=csc(theta)/(2cos(theta))#?
- How do you verify #cos^2(2alpha) - sin^2(2alpha)=cos(4alpha)#?
- How do you verify #(cotxtanx)/sinx= cscx#?
- How do you verify #[sin^3(B) + cos^3(B)] / [sin(B) + cos(B)] = 1-sin(B)cos(B)#?
- How do you verify #[cot^2 x - tan^2 x)/[(cot x + tan x)^2] = 2(cos^2) x - 1#?
- How do you verify #(csc x+sec x)/(sin x+ cos x)=cot x+tan x#?
- How do you verify #secx-cosx=sinx/cotx#?
- How do you verify #(1-sin^2Ѳ)(1+cot^2Ѳ)=cot^2Ѳ#?
- How do you verify #1-cos(2x)*sec^2(x) = (tan(x))^2#?
- How do you verify #(cscx-1)/(1-sinx) =cscx#?
- How do you verify #cscx-sinx=cosxcotx#?
- How do you verify #(Cos2x)/(1-sin2x)=(1+tanx)/(1-tanx)#?
- How do you verify #sin 2x = (2 tan x)/(1+ tan² x)#?
- How do you verify #sec(x)-cos(x)=sin(x)tan(x)#?
- How do you verify #(tanθ – sinθ • cosθ) / (sin²θ) = tanθ#?
- How do you verify #(sin^3x+cos^3x)/(sinx+cosx)=1-sinxcosx#?
- How do you verify #tan(x)sin(x) + cos(x)= sec(x) #?
- How do you verify #tan(x) / (1-cos(x))= csc(x)(1+sec(x))#?
- How do you verify # sin(-x)sec(-x)=-tan(x)#?
- How do you verify #sinxtanx + cosx = secx#?
- Prove that #(1-2sin^2x)/(1+sin2x) = (1-tanx)/(1+tanx)#?
- Question #7218e
- How do you simplify #(sin x + cos x)^2 + (sin x – cos x )^2#?
- How do you prove # (cos(x/2)-sin(x/2))^2= 1-sinx#?
- How do you prove #sin^4 X = (cos^2 2X - 2 cos 2x + 1) / 4#?
- How do you prove #cot (x/2) = (1+cos x)/ sin x#?
- How do you prove #sin^2 theta-cos^2 theta=2sin^2 theta-1#?
- How do you prove #Sec^2 (theta) / (1 + tan^2 (theta) )= 1#?
- How do you verify #(1+sin theta)(1- sin theta) = cos^2 theta#?
- How do you verify # (sin(theta)+cos(theta))^(2) + (sin(theta)-cos(theta))^(2)=2#?
- How do you prove #1/(1+sin(theta)) + 1/(1-sin(theta)) = 2sec^2(theta)#?
- How do you prove #(1+sin theta)(1- sin theta) = cos^2 theta#?
- How do you prove #(1-cosx) /sin = sin/( 1+cosx)#?
- How do you prove # 1 / (1-sin^2 x) =1+tan^2 x#?
- How do you prove #(sec(theta))+(tan(theta))(1-sin(theta))=cos(theta)#?
- How do you simplify #Tan(sin^-1(3/5))#?
- How do you prove #(1 - sin x)/(1 + sin x)=(sec x + tan x)^2#?
- Question #cab60
- Question #831dc
- How do you prove #Tan^2(x/2+Pi/4)=(1+sinx)/(1-sinx)#?
- How do you verify #sec^2((pi/2)-x)-1=cot^2 x#?
- How do you verify #sin x csc (pi/2 - x)= tan x#?
- How do you verify #sec^2 x - cot^2 ( pi/2-x) =1#?
- How do you verify #csc (-x) / sec ( - x) =- cot x#?
- How do you verify #Sin[(3pi/2)+theta]= -cos(theta)#?
- How do you prove #1+ sin(x)= 2*cos^2 (pi/4- x/2)#?
- How do you prove # (cos[theta]+tan[theta])/(sin[theta])= sec[theta]+cot[theta]#?
- How do you prove #csc^4[theta]-cot^4[theta]=2csc^2-1#?
- How do you prove #(cos[theta]+cot[theta])/(csc[theta]+1)= cos[theta]#?
- How do you prove #(1+sec[theta])/(tan[theta]+sin[theta])= csc[theta]#?
- How do you prove #(2-sec^2[theta])/(sec^2[theta]) =1-2sin^2[theta]#?
- How do you prove #csc^2x-1=(csc^2x)(cos^2x)#?
- How do you prove #1+(Cosθ + Sinθ)(Cosθ-Sinθ)= 2/sec^2 θ#?
- How do you prove #csc^2 θ+ sec^2 θ = sec^2 θ csc^2 θ#?
- How do you prove #(1-csc^2t)/ csc^2t = -1/sec^2t#?
- How do you prove # sec^2(csc^2) = sec^2 + csc^2#?
- How do you prove #sin ø + cot ø cos ø = csc ø#?
- How do you prove #tan^2(x) / sec(x) = sec(x) - cos(x) #?
- How do you prove #(1-cos(x)) / sin(x) = csc(x) - cot(x) #?
- How do you simplify #(sin^4(x)-sin^2(x))/sec(x)#?
- How do you prove #sec^2(x)-tan^2(x)=1#?
- How do you prove #sec x + sin x = tan x sin x#?
- How do you prove #cos^4x - sin^4x = 1 - 2sin^2x#?
- How do you prove #Sec(2x)=sec^2x/(2-sec^2x)#?
- How do you prove #Sec(x) - cos(x) = sin(x) * tan(x)#?
- How do you prove #(Cot(x) - tan(x)) /( sin(x) cos(x)) = csc^2(x) - sec^2(x)#?
- How do you prove # tan(x) /( 1+tan(x)) = sin(x) /( sin(x)+cos(x))#?
- How do you prove #Csc(x) - Cos(x)Cot(x) = Sin(x)#?
- How do you prove #(sec^2 x-1)/sec^2x=sin^2x#?
- How do you prove #sec(2x)= ((secx)^2)/(2-(secx)^2)#?
- How do you prove #sec x/cos x - sec x cos x= tan^2 x #?
- How do you prove #sin x/(1-sin^2 x)=sec x tan x #?
- How do you prove #sec^2x / tanx = secxcscx #?
- How do you prove #cosxcotx = cscx - sinx#?
- How do you prove #csc^2(x)-cot^2(x)=1#?
- How do you prove #csc^2(theta)(1-cos^2(theta)=1#?
- How do you prove #tan(theta)/cot(theta)=tan^2(theta)#?
- How do you prove #(csc(t) + cot(t)(csc(t) - cot(t)) = 1#?
- How do you prove # {(sin(x + y)) / sin(x)cos(y)} = 1-cot(x)tan(y)#?
- How do you prove # cos^4(x) - sin^4(x) = cos(2x)#?
- How do you prove # cos(x+y)cosy + sin(x+y)siny = cosx#?
- How do you prove #sin(x+[pi/6])*sin(x-[pi/6]) = (sin x)^2 - 1/4#?
- Question #c0cfc
- Question #b79f5
- Question #7bc7e
- Question #3a473
- Question #4ae15
- Question #32396
- Question #0dd27
- Question #e41b6
- Question #cea51
- Simplify #(cscxcosx)/(tanx+cotx)#?
- Question #50e6d
- Question #d4c2f
- What is the simplified version of #(2 - 2tanx)/(2 + 2tanx)#?
- Question #200ab
- How would you prove or disprove #cotx - cosx/cotx = cos^2x/(1 + sinx)#?
- From #cosh2A = 1+2(sinh^2)A#, how do you prove that #(sinh^4)A + (cosh^4)A=(cosh4A + 3)/4# and also #(cosh^4)A - (sinh^4)A = cosh2A#?
- How do you show #(coshx + sinhx)^n = cosh(nx) + sinh(nx)# for any real number n?
- How do you prove #Cosh(A+B) = CoshA*CoshB+SinhB*SinhA#?
- How do you prove #sinhx +coshx=e^x#?
- How do you prove #cosh(2x) = cosh²x + sinh²x#?
- How do you prove #sinh^-1 (t) = ln(t+ sqrt(t^2 + 1))#?
- How do you prove #Arc cosh(x) = ln(x + (x^2 - 1)^(1/2))#?
- How do you solve #3 coth x + cosech ^2 x = 3#?
- How do you verify #tanh x/(cosh x - sinh x tanh x) = sinh x#?
- How do you verify #tanh(x + y) = (tanh x + tanh y)/(1 + tanh x + tanh y)#?
- Prove that #(cotx-tanx)/(sinx+cosx)=cscx-secx#?
- Question #f61d0
- Question #0430b
- How would you prove #tanx/cscx = secx - 1/secx#?
- Question #b092d
- Question #696f9
- How do you verify #Cos(180° - theta) = -cos theta#?
- How do you prove #((1+tanx)/(1-tanx)) + ((1+cotx)/(1-cotx)) = 0#?
- How do you prove#((cosx)/(1-tanx)) (sinx/(1- cotx))=sinx cosx#?
- How do you prove#tanx/(1+cosx) + sinx/(1-cosx)=cotx+(secx)(cscx)#?
- How do you prove #cosX / (secX - tanX) = 1 + sinX#?
- How do you prove #(tan^3x - 1) /( tanx - 1) = tan^2x + tanx + 1#?
- How do you prove #tan((x/2)+(pi/4))=secx+tanx#?
- How do you prove# (cosx)(cscx)(tanx)=1#?
- How do you prove# (cosx)(cscx)(tanx)=1#?
- How do you prove #(cotx-1)/(cotx+1) = (1-tanx)/(1+tanx)#?
- How do you prove #(1+tanx)/(1+cotx)=2#?
- How do you prove #(cotx)/(1-tanx)+(tanx)/(1-cotx) = 1+tanx+cotx#?
- How do you prove #(1+tanx)/(1+cotx) = tanx#?
- How do you prove #Tan[x+(pi/4)]=(1+tanx)/(1-tanx)#?
- How do you prove #sin2x=(tanx)(1+cos2x)#?
- How do you prove #(1+tanx) /( 1-tanx) = (1+sin2x) / cos"2x"#?
- How do you prove #(1+tanx)/(1+cotx)= secx/cscx#?
- How do you prove # 1/(secx-tanx) - 1/(secx+tanx)=2tanx#?
- How do you prove #(cosx-1)(tanx-1)=0#?
- How do you prove #[1 - cos(x)]/[sin(x)] = tan(x/2)#?
- How do you prove #{cos(x)cot(x)}/{1-sin(x)} - 1 = csc(x)#?
- How do you prove #Sin(x/3)cos(x/3) = (1/2)sin(2x/3)#?
- How do you prove #cos(x+y)cos(x-y)= cos^2x - sin^2y#?
- How do you prove #[sin(x+ y) - sin(x-y)] /[ cos(x+ y) + cos(x-y)]= tan y#?
- How do you prove #Sin^2x-sin^2y=sin(x+y)sin(x-y)#?
- How do you prove #Sin(x-y) Cos y + Cos(x-y) Sin y = Sinx#?
- How do you prove #Sec(x) - cos(x) = sin(x) * tan(x)#?
- How do you prove #sin (x + y + z) = sin x cos y cos z + cos x sin y cos z + cos x cos y sin z - sin x sin y sin z#?
- How do you prove # [sin(x+y) / sin(x-y)] = [(tan(x) + tan (y) )/ (tan (x) - tan (y))]#?
- How do you verify #cos (x-y) - cos (x+y) = 2 sin x sin y#?
- How do you prove # Cos θ Sec θ = 1 #?
- How do you verify #(1-sin)/(1+sin) = (sec-tan)^2#?
- How do you simplify #(sec^2x) - (tan^2x)#?
- How do you prove #(sec+tan)(sec-tan)=1#?
- How do you verify #(sec - tan) (csc +1)=cot#?
- How do you verify #((sec x - tan x)^2 + 1)/((sec x csc x) - (tan x csc x)) = 2tan x#?
- How do you verify #Sec(x) - cos(x) = sin(x) * tan(x)#?
- How do you verify #(sec + tan)(sec - tan) = 1#?
- How do you verify #Sec^4x-tan^4x=sec^2x+tan^2x#?
- How do you verify #Tan(theta)csc(theta)= sec(theta)#?
- How do you prove #cot(theta)sec(theta)=csc(theta)#?
- Question #25635
- Question #0a813
- Question #2bbce
- If #tanx=-12/5#, find #((cosx-1)(cosx+1))/((sinx-1)(sinx+1))#?
- How do you verify #(1-cos^2a)(1+cos^2a)=2sin^2a-sin^4a#?
- How do you verify #(sec theta+csc theta)(cos theta-sin theta)=cot theta-tan theta#?
- Question #91a43
- Question #a3e64
- Given #secalpha=secbetasecgamma+tanbetatangamma# How will you show? #secbeta =secgammasecalpha+-tangammatanalpha#
- How do you prove #tan2x + sec2x = (cosx + sinx) / (cosx – sinx)#?
- How do you prove #2sin x + sin 2 x = (2 sin^3 x) / (1 – cos x)#?
- How do you prove #[(sin 3x) / sin x ] – [(cos3x) / cos x)] = 2#?
- How do you prove #sin 4 x = 4 sin x cos x – 8sin^3 x cos x#?
- How do you prove #Cot^2 (theta) + 5 = 6 Cot (theta)#?
- How do you verify #sin^5xcos^2x=(cos^2x-2cos^4x+cos^6x)sinx#?
- How do you verify #sqrt((1-sinx)/(1+sinx))=(1-sinx)/abs(cosx)#?
- How do you prove #cos²θ - sin²θ = 2cos²θ - 1#?
- How do you prove #(1 + cot²θ) / secθ = cscθcotθ#?
- How do you solve #Cos x / (1- sin x) = sec x + tan x#?
- How do you prove #sin x + cos x * cot x = csc x#?
- How do you prove #(1 + csc x)(sec x - tan x) = cot x#?
- How do you prove #Sec(x) - cos(x) = sin(x) * tan(x)#?
- How do you prove # [1 - cos(x)]/[sin(x)] = tan(x/2)#?
- How do you prove #Cos(x+pi/6)-sin(x+pi/6)#?
- How do you prove #cos2t=(1-tan^2 t)/(1+tan^2 t)#?
- How do you prove #1+tan^2 (x) = sec^2 (x)#?
- How do you prove #sec(x) + 1 + ((1-tan^2(x)) / (sec(x)-1)) = cos(x)/(1-cos(x))#?
- How do you simplify #(tan^2 (theta) csc^2 (theta)-1) / tan^2(theta)#?
- How do you simplify #cos x /( sec x -1) + cos x / (sec x +1)#?
- How do you simplify #(1- tan^2θ) /( 1+ tan^2 θ)#?
- How do you verify #(tan^3(x) - 1) / (tan(x) - 1) = sec^2(x) + tan(x)#?
- How do you verify #(1+tan^2x)/(1+cot^2x) = (tan^2x)^2#?
- How do you verify #(2 + cos^2 x)(1+ tan^2 x)= 3 + 2tan^2 x#?
- How do you verify #(1 + sec^2 x) / (1 + tan^2 x) = 1 + cos^2 x#?
- How do you verify #(1-tan^2x) / (1+tan^2x) = 1-2sin^2#?
- How do you verify #(1-tan^2x)/(1-cot^2x) = 1-sec^2x#?
- How do you verify #(2tan(x/2)) / (1+tan^2(x/2)) = sin x#?
- How do you prove #(2tanx)/ (1+tan^2 x) = sin 2x#?
- How do you prove #[(1+tan^(2)x )/ (tan^(2)x)]=csc^(2)x#?
- How do you write #cos^2 0.45-sin^2 0.45# as a single trigonometric function?
- Question #e375a
- Question #4eece
- How do you verify the following identity?
- How do you verify the following identity?
- What is the value of #cot(-315^@)#?
- If #tan(a+b)=1 and tan(a-b)=1/7# then how will you find out the values of #tana and tanb#?
- Given #secalpha=secbetasecgamma+tanbetatangamma# How will you show? #secbeta =secgammasecalpha+-tangammatanalpha#
- Question #c28de
- Question #8e0f7
- Question #ba262
- Question #01baa
- Question #9a76f
- Question #b0253
- Prove the trigonometric identity? #tanx(1-cot^2x)+cotx(1-tan^2x)=0#
- Question #3394e
- How do you prove #secx-cosx=secxsinx#?
- Question #4d51c
- Question #ea647
- #cosx(2sinx + sqrt3)(-sqrt2 cosx + 1) = 0#??
- Question #5a859
- Question #62402
- Question #cc719
- Question #8908d
- Question #e1c7e
- Question #58cc8
- Question #e8ab5
- Question #f0808
- Question #d302a
- Question #bb27f
- Verify: #(cotx - cscx)(cosx +1) =-sinx# ?
- Question #41efc
- Question #edfc6
- Question #edfdd
- Question #bf732
- How do you find A, B and C, given that #A sin ( B x + C ) = cos ( cos^(-1) sin x + sin^(-1) cos x ) + sin (cos^(-1) sin x + sin^(-1) cos x )#?
- How do you verify the identity #(sec^2x-1)cos^2x=sin^2x#?
- How do you verify the identity #tanthetacsc^2theta-tantheta=cottheta#?
- How do you verify the identity #sec^2theta(1-cos^2theta)=tan^2theta#?
- How do you verify the identity #sectheta/sintheta-sintheta/costheta=cottheta#?
- How do you verify the identity #sintheta-sinthetacos^2theta=sin^3theta#?
- How do you verify the identity #csctheta-cotthetacottheta=sintheta#?
- How do you verify the identity #cot^2thetacsc^2theta-cot^2theta=cot^4theta#?
- How do you verify the identity #sintheta/(1-costheta)+(1-costheta)/sintheta=2csctheta#?
- How do you verify the identity #costheta/(1+sintheta)+tantheta=sectheta#?
- How do you verify the identity #1/(csctheta+1)+1/(csctheta-1)=2sec^2thetasintheta#?
- How do you verify the identity #sintheta/(1-cottheta)+costheta/(1-tantheta)=sintheta+costheta#?
- How do you verify the identity #1/(1-tan^2theta)+1/(1-cot^2theta)=1#?
- How do you verify the identity #(csctheta-cottheta)(csctheta+cottheta)=1#?
- How do you verify the identity #cos^4theta-sin^4theta=cos^2theta-sin^2theta#?
- How do you verify the identity #1/(1-sintheta)+1/(1+sintheta)=2sec^2theta#?
- How do you verify the identity #costheta/(1+sintheta)+costheta/(1-sintheta)=2sectheta#?
- How do you verify the identity #csc^4theta-cot^4theta=2cot^2theta+1#?
- How do you verify the identity #(csc^2theta+2csctheta-3)/(csc^2theta-1)=(csctheta+3)/(csctheta+1)#?
- How do you verify the identity #(csctheta-cottheta)^2=(1-costheta)/(1+costheta)#?
- How do you verify the identity #(1+tan^2theta)/(1-tan^2theta)=1/(2cos^2theta-1)#?
- How do you verify the identity #sectheta-costheta=tanthetasintheta#?
- How do you verify the identity #1-tan^4theta=2sec^2theta-sec^4theta#?
- How do you verify the identity #(1+tantheta)/(sintheta+costheta)=sectheta#?
- How do you verify the identity #(2+cscthetasectheta)/(cscthetasectheta)=(sintheta+costheta)^2#?
- How do you verify the identity #(cot^2x-1)/(1+cot^2x)=1-2sin^2x#?
- How do you verify the identity #(tanx-secx)/(tanx+secx)=(tan^2x-1)/(sec^2x)#?
- How do you verify the identity #(cos^2theta-sin^2theta)=(cottheta-tantheta)/(tantheta+cottheta)#?
- How do you verify the identity #sqrt((sinthetatantheta)/sectheta)=abs(sintheta)#?
- How do you verify the identity #sqrt((sectheta-1)/(sectheta+1))=abs((sectheta-1)/tantheta)#?
- How do you verify the identity #lnabs(csctheta+cottheta)+lnabs(csctheta-cottheta)=0#?
- How do you verify the identity #lnabs(cotx)+lnabs(tanxcosx)=lnabs(cosx)#?
- How do you verify the identity #sec^2theta+tan^2theta=sec^4theta-tan^4theta#?
- How do you verify the identity #-2cos^2theta=sin^4theta-cos^4theta-1#?
- How do you verify the identity #sec^2thetasin^2theta=sec^4theta-(tan^4theta+sec^2theta)#?
- How do you verify the identity #3sec^2thetatan^2theta+1=sec^6theta-tan^6theta#?
- How do you verify the identity #sec^4theta=1+2tan^2theta+tan^4theta#?
- How do you verify the identity #sec^2thetacsc^2theta=sec^2theta+csc^2theta#?
- How do you verify the identity #secx-cos^2xcscx=tanxsecx#?
- How do you verify the identity #(tanx+secx)(1-sinx)=cosx#?
- How do you verify the identify #sinthetasecthetacottheta=1#?
- How do you verify the identify #sintheta/csctheta=sin^2theta#?
- How do you verify the identify #sinthetatantheta+costheta=sectheta#?
- How do you verify the identify #tan^2theta+1=sec^2theta#?
- How do you verify the identify #sectheta/csctheta=tantheta#?
- How do you verify the identify #sec^2theta-tan^2theta=1#?
- How do you verify the identify #(sintheta+costheta)/sintheta=1+cottheta#?
- How do you verify the identify #cotthetasectheta=csctheta#?
- How do you verify the identify #costhetacscthetatantheta=1#?
- How do you verify the identify #csctheta/cottheta=sectheta#?
- How do you verify the identify #tantheta+cottheta=secthetacsctheta#?
- How do you verify the identify #costhetacottheta+sintheta=csctheta#?
- How do you verify the identify #secthetacottheta=csctheta#?
- How do you verify the identify #sectheta=cscthetatantheta#?
- How do you verify the identify #(1-sintheta)(1+sintheta)=cos^2theta#?
- Question #14061
- Question #14663
- Question #de16d
- Question #ac5ff
- Question #5176d
- How do you prove #(1+costheta)/sintheta+sintheta/costheta=(costheta+1)/(sinthetacostheta)#?
- How do you prove #(1-cosx)/sinx=sinx/(1+cosx)#?
- How do you prove #(1+tany)/(1+coty)=secy/cscy#?
- How do you prove #(sinx+cosx)/(secx+cscx)=sinx/secx#?
- How do you prove #(cos^2alpha+cotalpha)/(cos^2alpha-cotalpha)=(cos^2alphatanalpha+1)/(cos^2alphatanalpha-1)#?
- How do you prove #sec2theta=sec^2theta/(2-sec^2theta)#?
- How do you prove #(2tantheta)/(1+tan^2theta)=sin2theta#?
- How do you prove #cos(u-v)/(cosusinv)=tanu+cotv#?
- How do you prove #1-cos5thetacos3theta-sin5thetasin3theta=2sin^2theta#?
- How do you prove #2sinthetacos^3theta+2sin^3thetacostheta=sin2theta#?
- How do you prove #(tan3t-tant)/(1+tan3t*tant)=(2tant)/(1-tan^2t)#?
- How do you prove #(tanx-sinx)/(2tanx)=sin^2(x/2)#?
- How do you prove #(cos^3beta-sin^3beta)/(cosbeta-sinbeta)=(2+sin2beta)/2#?
- How do you prove #sin(alpha+beta)sin(alpha-beta)=sin^2alpha-sin^2beta#?
- How do you prove #cos^2x(1-sec^2x)=-sin^2x#?
- How do you prove #tantheta(tantheta+cottheta)=sec^2theta#?
- How do you prove #(1+cos^2x)/sin^2x=2csc^2x-1#?
- How do you prove #(tany+coty)/cscy=secy#?
- How do you prove #(1+sinx)/(1-sinx)+(sinx-1)/(1+sinx)#?
- How do you prove #tantheta-cottheta=(sectheta-csctheta)(sintheta+costheta)#?
- How do you prove #cos^2alphacot^2alpha=cot^2alpha-cos^2alpha#?
- How do you prove #(tanx+cotx)/(secx+cscx)=1/(cosx+sinx)#?
- How do you prove #2sin^2thetacos^2theta+cos^4theta=1-sin^4theta#?
- How do you prove #cottheta/(csctheta-1)=(csctheta+1)/cottheta#?
- How do you prove #(1+sinx)/(1-sinx)=(secx+tanx)^2#?
- How do you find the exact value of #sin^-1(-sqrt3/2)#?
- How do you prove the identity #(tany+siny)/(2tantheta)=cos^2(y/2)#?
- How do you prove the identity #(sinx-cosx)/cos^2x=(tan^2x-1)/(sinx+cosx)#?
- Question #2f091
- How do you simplify #cot x xx sin x#?
- #sin(cos^-1(4/sqrt(p^2+16))) =# ?
- Question #cf9c7
- If #sinx+siny=a# and #cosx+cosy=b# how do you find #cos(x-y)# ?
- If #sinx+siny=a# and #cosx+cosy=b# how do you find #x,y# ?
- Question #84512
- Simplify #(1+cos2A+sin2A)/(1-cos2A+sin2A)#?
- Question #74b80
- Question #bf293
- Question #8f7b6
- Question #b79c3
- Question #ff82b
- Question #bb1b9
- Prove that #cosB/(1-sinB)=secB+tanB#?
- If #2cosAcosB=cos(x)+cos(y)#, then #x+y=#??
- Question #9edc7
- Prove that #(cosA - sinA + 1)/(cosA + sinA - 1) = cscA + cotA# ?
- Question #cfd49
- PROVE THAT : [sinA /1-cosA - 1-cosA/sinA ][cosA/1+sinA + 1+sinA/cosA] = 4cosecA.?
- Question #6ad0a
- #(sin x)^4 / x + (cos x )^4 /y = 1/(x+y)# Then prove that #(sin x)^12 /x^5 + (cos x)^12 /y^5 = 1/(x+y)^5# ?
- Question #5f6db
- Question #5743e
- Question #ccc87
- If tanx =3/4, π < x <3 π /2, find the values of sin (x/2), cos (x/2) and tan (x/2)?
- Question #07cd9
- Question #7cfc8
- Solve #cosx+sinx=2/3# ?
- Question #d8d7c
- How do you prove #costhetatantheta=sintheta#?
- How do you prove #costhetacottheta=costheta#?
- How do you prove #tantheta/cottheta=tan^2theta#?
- How do you prove #csctheta/sintheta=csc^2theta#?
- How do you prove #cos^2theta/(1+sintheta)=1-sintheta#?
- How do you prove #(1-2cos^2theta)/(sinthetacostheta)=tantheta-cottheta#?
- How do you prove #sin^4theta-cos^4theta=sin^2theta-cos^2theta#?
- How do you prove #cos^4theta-sin^4theta=1-2sin^2theta#?
- How do you prove #(1-tantheta)/(1+tantheta)=(cottheta-1)/(cottheta+1)#?
- How do you prove #sin^2theta/(1-sin^2theta)=tan^2theta#?
- How do you prove #(1-tan^2theta)/(1-cot^2theta)=1-sec^2theta#?
- How do you prove #sintheta=+-tantheta/(sqrt(1+tan^2theta))#?
- How do you prove #cos3theta=4cos^3theta-3costheta#?
- How do you prove #tan(1/2theta)=csctheta-cottheta#?
- How do you prove #sin(2theta)/sintheta-cos(2theta)/costheta=sectheta#?
- How do you prove #sin(3theta)/sintheta-cos(3theta)/costheta=2#?
- How do you prove #tan(2theta)=2/(cottheta-tantheta)#?
- How do you prove #tan(3theta)=(3tantheta-tan^3theta)/(1-3tan^2theta)#?
- How do you prove #tan^2(1/2theta)=(tantheta-sintheta)/(tantheta+sintheta)#?
- How do you prove #cos^2phi/cos^2theta=(1+cos2phi)/(1+cos2theta)#?
- How do you prove #sin^-1x+cos^-1x=pi/2#?
- How do you prove #sec^-1x+csc^-1x=pi/2#?
- How do you prove #sin^-1(-x)=-sin^-1x#?
- How do you prove #cos^-1(-x)+cos^-1x=pi#?
- How do you prove #cot^-1x=tan^-1(1/x)# for x>0?
- How do you prove #tan^-1x+tan^-1(1/x)=pi/2# for x>0?
- How do you prove #tan^-1(1/3)+tan^-1(1/5)=tan^-1(4/7)#?
- How do you prove #tan^-1(1/4)+tan^-1(2/9)=tan^-1(1/2)#?
- Question #cdf91
- Prove that #secx-cosx=tanxsinx#?
- Question #c070f
- Question #93fd2
- Question #a0e09
- Question #6cb94
- Prove that #cos(4x)=8 cos(x)^4 - 8 cos(x)^2 +1# ?
- Question #fe77f
- Prove that #(1+sinx)/(1-sinx)=(secx+tanx)^2#?
- Question #9d32e
- Question #1892c
- Question #c781d
- Question #9240c
- Question #b851d
- Solve tanx=cotx for all solutions [0, 2pi)?
- Question #d75d1
- Question #f83fd
- Question #0733f
- Question #849cc
- Question #f676d
- Question #27270
- Question #fa8db
- Question #11eef
- Question #54631
- How do you show that #cosx/(1 - tanx) - sin^2x/(cosx- sinx) = cosx + sinx#?
- How do you prove that #sin5x=sinx(cos^2 2x-sin^2 2x)+2cosxcos2xsin2x#?
- Provet that? : #cos(-x) -= cosx#
- Pruebalo #(sinx-cosx)^2=1-1/csc^2x#?
- Question #01154
- Pruebalo #sin2x=2sinxcosx#?
- Question #5d455
- Question #0d7b8
- Question #c38f4
- How do you verify that #sin^2x/(cos^4x+cos^2xsin^2x)=tan^2x#?
- Question #4d249
- Question #23e00
- Prove that #sin^2 theta(1+cot^2 theta)-1=0#?
- Question #634e2
- Question #75f4f
- Question #3a93f
- Question #aadaa
- Question #297e2
- Question #4c437
- Question #b8b69
- How do you prove that #sin(cot^(-1)(tan(cos^(-1)(sin x))))=sin x#?
- Verify that (cos^2x - sin^2x) / (1-tan^2x) = cos^2x ?
- How do you show that #cos(2x) = 2cos^2x- 1#?
- Question #13d24
- How do you show that the equation #1-sinx=cosx# is not an identity?
- How do you prove #tan(-A)=-tanA#?
- How do you prove that #sintheta+costheta=tantheta# is not an identity?
- How do you prove that #sec^2x+csc^2x=1# is not an identity?
- How do you verify #cosx=cotx/cscx#?
- How do you verify #1/(tanx+secx)=cosx/(sinx+1)#?
- How do you verify #csctheta-cottheta=1/(csctheta+cottheta)#?
- How do you verify #sinthetatantheta=sectheta-costheta#?
- How do you verify #(sinA-cosA)^2=1-2sin^2AcotA#?
- How do you find a numerical value of one trigonometric function of x given #tanx=1/4secx#?
- How do you find a numerical value of one trigonometric function of x given #cotx+sinx=-cosxcotx#?
- How do you verify #tanA=secA/cscA#?
- How do you verify #costheta=sinthetacottheta#?
- How do you verify #secx-tanx=(1-sinx)/cosx#?
- How do you verify #(1+tanx)/(sinx+cosx)=secx#?
- How do you verify #secxcscx=tanx+cotx#?
- How do you verify #sintheta+costheta=(2sin^2theta-1)/(sintheta-costheta)#?
- How do you verify #(sinA+cosA)^2=(2+secAcscA)/(secAcscA)#?
- How do you verify #(sintheta-1)(tantheta+sectheta)=-costheta#?
- How do you verify #cosy/(1-siny)=(1+siny)/cosy#?
- How do you verify #costhetacos(-theta)-sinthetasin(-theta)=1#?
- How do you verify #cscx-1=cot^2x/(cscx+1)#?
- How do you verify #cosBcotB=cscB-sinB#?
- How do you verify #sinthetacosthetatantheta+cos^2theta=1#?
- How do you verify #(cscx-cotx)^2=(1-cosx)/(1+cosx)#?
- How do you verify #sinx+cosx=cosx/(1-tanx)+sinx/(1-cotx)#?
- How do you find a numerical value of one trigonometric function of x given #cscx/cotx=sqrt2#?
- How do you find a numerical value of one trigonometric function of x given #(1+tanx)/(1+cotx)=2#?
- How do you find a numerical value of one trigonometric function of x given #1/cotx-secx/cscx=cosx#?
- How do you find a numerical value of one trigonometric function of x given #(1+cosx)/sinx+sinx/(1+cosx)=4#?
- How do you find a numerical value of one trigonometric function of x given #cos^2x+2sinx-2=0#?
- How do you find a numerical value of one trigonometric function of x given #cscx=sinxtanx+cosx#?
- How do you use the graphing calculator to determine whether the equation #1/sin^2x+1/cos^2x=1# could be an identity?
- How do you use the graphing calculator to determine whether the equation #costheta(costheta-sectheta)=-sin^2theta# could be an identity?
- How do you use the graphing calculator to determine whether the equation #2sinA+(1-sinA)^2=2-cos^2A# could be an identity?
- How do you use the graphing calculator to determine whether the equation #(sin^3x-cos^3x)/(sinx-cosx)=sin^2x+cos^2x# could be an identity?
- Question #93493
- How do you verify the identity #cosx+cosxtan^2x=secx#?
- How do you prove that #sinxtanx = secx- cosx#?
- Question #52b10
- #sinx+sin^2x+sin^3x#=1 the what is #cos^6x -4cos^4x+8cos^2x#=?
- Question #897a1
- Question #879e2
- How do you verify #cosxcotx+sinx=cscx#?
- How do you verify #sin(2pi-theta)=-sintheta#?
- How do you verify #(2cot2x)/(cosx-sinx)=cscx+secx#?
- How do you simplify #costheta/(sin^2theta-1)#?
- How do you prove that #costheta/(1-sintheta) + costheta/(1+sintheta) = 2 /costheta#?
- Question #70ca9
- Question #49284
- Question #7d3bd
- Question #cabf2
- How do you verify #costheta(1-4sin^2theta)=costhetacos(2theta)-sinthetasin(2theta)#?
- Question #1dfb0
- Question #4611d
- Question #ed504
- Question #75f9a
- Question #f3a89
- Prove that #sec^2x(1-cos^2x)=tan^2x#?
- Question #745b8
- Question #adcee
- Question #4d151
- Question #fc29b
- How do you show that #sec(2x) + tan(2x) + 1 = 2/(1 - tanx)#?
- Prove that #(tanx-cotx)/(tanx+cotx)=sin^2x-cos^2x#?
- Question #94009
- Prove that #cosycos(x-y)-sinysin(x-y)=cosx#?
- Question #32891
- Question #18ffc
- If #(a^2-b^2)sintheta + 2ab costheta = a^2+b^2#, then what will the value of #sintheta# be?
- Question #efcdc
- Question #1b8ac
- Question #5cf65
- Question #ac9e3
- Question #07ce3
- Verify? #(cotx-tanx)/cosxsinx=csc^2x-sec^2x#
- Question #56a1c
- Question #781b9
- Verify that each equation is an identity?
- How do you show that #(sec^2x + csc^2x)(sec^2x- csc^2x) =tan^2x -cot^2x#?
- Question #562b9
- Prove the identity of #cos(3x + 3y) + cos(3x − 3y) = 2 cos 3x cos 3y#?
- How do you verify #(1+cotalpha)^2-2cotalpha=1/((1-cosalpha)(1+cosalpha))#?
- Question #d1e3c
- Question #ddb15
- Question #01fe8
- Question #350e8
- How to prove these identities?
- Question #9f5e1
- Question #8de97
- Question #88774
- How do you show that #4cos^2x- 2 = 2sin(2x+ pi/2)#?
- Question #18ea9
- Question #6c534
- If #sectheta+tantheta=3/2#, what is the value of #sintheta#?
- Question #df763
- Question #aef15
- Question #c1e7d
- Question #04652
- If #sina + sin^2a = 1,# then what will be# cos^2a + cos^4a #?
- How can you show #tan^2 x(1+cos2x)=2sin^2x#?
- Question #9f4e8
- Question #fed78
- Question #78b54
- Question #ba55e
- Question #23ee5
- Question #df912
- Question #7d988
- Question #b70e4
- Question #fc331
- How do you prove the identity #(sin^3x - cos^3x)/(sinx - cosx) =1 + sinxcosx#?
- Question #26248
- Question #77e3a
- Question #8011d
- Question #a4b38
- Question #5df8b
- Question #71bbb
- Simplify #Sin[2tan^-1(sqrt((1-x)/(1+x)))]#?
- #If tan^4a + tan^2a = 1#, then find the value of #cos^4a + cos^2a ?#
- Question #5d572
- How to prove the value of cos a + sin a is greater than 1 ?
- How do you prove #csc^2theta-cot^2theta=cotthetatantheta#?
- Question #09530
- Prove? #cscx(1+cosx)(cscx-cotx)=1#
- Question #3ea95
- Question #6fd1b
- How do you verify the identity #sintcsct=1#?
- How do you verify the identity #secycosy=1#?
- How do you verify the identity #(1+sinalpha)(1-sinalpha)=cos^2alpha#?
- How do you verify the identity #cot^2y(sec^2y-1)=1#?
- How do you verify the identity #cos^2beta-sin^2beta=1-2sin^2beta#?
- How do you verify the identity #cos^2beta-sin^2beta=2cos^2beta-1#?
- How do you verify the identity #tan^2theta+4=sec^2theta+3#?
- How do you verify the identity #2-sec^2z=1-tan^2z#?
- How do you verify the identity #sin^2alpha-sin^4alpha=cos^2alpha-cos^4alpha#?
- How do you verify the identity #csc^2theta/cottheta=cscthetasectheta#?
- How do you verify the identity #cot^2t/csct=csct-sint#?
- How do you verify the identity #1/tanbeta+tanbeta=sec^2beta/tanbeta#?
- How do you verify the identity #sin^(1/2)xcosx-sin^(5/2)xcosx=cos^3xsqrtsinx#?
- How do you verify the identity #1/(secxtanx)=cscx-sinx#?
- How do you verify the identity #(sectheta-1)/(1-costheta)=sectheta#?
- How do you verify the identity #cotalpha+tanalpha=cscalphasecalpha#?
- How do you verify the identity #secx-cosx=sinxtanx#?
- How do you verify the identity #1/tanx+1/cotx=tanx+cotx#?
- How do you verify the identity #1/sinx-1/cscx=cscx-sinx#?
- How do you verify the identity #(costhetacottheta)/(1-sintheta)-1=csctheta#?
- How do you verify the identity #(1+sintheta)/costheta+costheta/(1+sintheta)=2sectheta#?
- How do you verify the identity #1/(sinx+1)+1/(cscx+1)=1#?
- How do you verify the identity #tan(pi/2-theta)tantheta=1#?
- How do you verify the identity #cos(pi/2-x)/sin(pi/2-x)=tanx#?
- How do you verify the identity #csc(-x)/sec(-x)=-cotx#?
- How do you verify the identity #(1+siny)(1+sin(-y))=cos^2y#?
- How do you verify the identity #(sinxcosy+cosxsiny)/(cosxcosy-sinxsiny)=(tanx+tany)/(1-tanxtany)#?
- How do you verify the identity #(tanx+tany)/(1-tanxtany)=(cotx+coty)/(cotxcoty-1)#?
- How do you verify the identity #(cosx-cosy)/(sinx+siny)+(sinx-siny)/(cosx+cosy)=0#?
- How do you verify the identity #sqrt((1+sintheta)/(1-sintheta))=(1+sintheta)/abscostheta#?
- How do you verify the identity #sqrt((1-costheta)/(1+costheta))=(1-costheta)/abssintheta#?
- How do you verify the identity #cos^2beta+cos^2(pi/2-beta)=1#?
- How do you verify the identity #sec^2y-cot^2(pi/2-y)=1#?
- How do you verify the identity #sintcsc(pi/2-t)=tant#?
- How do you verify the identity #sec^2(pi/2-x)-1=cot^2x#?
- How do you verify the identity #2sec^2x-2sec^2xsin^2x-sin^2x-cos^2x=1#?
- How do you verify the identity #cscx(cscx-sinx)+(sinx-cosx)/sinx+cotx=csc^2x#?
- How do you verify the identity #2+cos^2x-3cos^4x=sin^2x(3+2cos^2x)#?
- How do you verify the identity #tan^4x+tan^2x-3=sec^2x(4tan^2x-3)#?
- How do you verify the identity #csc^4x-2csc^2x+1=cot^4x#?
- How do you verify the identity #(sin^4beta-2sin^2beta+1)cosbeta=cos^5beta#?
- How do you verify the identity #sec^4theta-tan^4theta=1+2tan^2theta#?
- How do you verify the identity #csc^4theta-cot^4theta=2csc^2theta-1#?
- How do you verify the identity #cosx/(1-sinx)=(1-sinx)/cosx#?
- How do you verify the identity #cotalpha/(cscalpha+1)=(cscalpha-1)/cotalpha#?
- How do you verify the identity #(tan^3alpha-1)/(tanalpha-1)=tan^2alpha+tanalpha+1#?
- How do you verify the identity #(sin^3beta+cos^3beta)/(sinbeta+cosbeta)=1-sinbetacosbeta#?
- What is #(1+cosx)/(1+secx)# for #x=pi/3#?
- Question #16345
- Question #2a2fe
- Question #a0851
- Question #3a1ff
- Question #e7c45
- Question #a2c18
- Simplify #(1+cos2x)/(sin2x)#?
- Express #(1-sin^2x)/cosx# in terms of sine ratio of #x# and / or its multiples?
- Question #24c34
- Question #b542e
- Question #2abb6
- Does #2+2tanx=2secx#?
- Prove #cot^2theta/(sintheta+costheta)=(cos^2thetasintheta-cos^3theta)/(2sin^4theta-sin^2theta)#?
- Question #b99f6
- Question #375a5
- How do you prove that? Sin4x=4 cos2x sinx cosx
- How do you verify the identity #cosx(tan^2x+1)=secx#?
- How do you verify the identity #sec^2xcotx-cotx=tanx#?
- How do you verify the identity #cot(pi/2-x)=tanx#?
- How do you verify the identity #1/(tanthetacsctheta)=costheta#?
- How do you verify the identity #1/(tanxcscxsinx)=cotx#?
- Question #9925d
- Question #5df15
- Question #5a13e
- Simplify #[2(tanx-cotx)]/(tan^2x-cot^2x)#?
- Prove that #(sinx-1)/(sinx+1)=(-cos^2x)/(sinx+1)^2#?
- Question #2077e
- Prove that # 1200secx(2(sec^2x)-1) -= 1220 ((1+sin^2x)/cos^2x) #?
- Prove? #cotx/(cscx-1)=(cscx+1)/cotx#
- Question #18291
- Which of these is an identity?
- Question #f4c39
- Question #e51b8
- Question #603e4
- Question #49ba0
- Prove that #(1+cotx)/cscx-secx/(tanx+cotx)=cosx#?
- Question #a5232
- Question #75222
- Question #f48cc
- Question #db45b
- Question #7cb8c
- Question #8df79
- Question #abbeb
- If #cotx+coty+cotz=0#, prove that #(tanx+tany+tanz)^2=tan^2x+tan^2y+tan^2z#?
- Solve #acosA-bsinA=c# ?
- Question #7efd9
- Question #57b0f
- How do you verify sin2x * cotx = 1 ?
- Question #8982d
- Show that # sin^2x tan^2x = ( 3-4cos2x+cos4x ) / ( 4(1+cos2x) ) #?
- Question #7225a
- Question #c9664
- How can you prove that #1 - tanh^2x = sech^2x#?
- Question #7e96d
- Question #24c10
- Question #1bb35
- Question #9a883
- Question #49783
- Prove that #tanx-(sec^2x)/tanx=-cotx#?
- Question #df465
- Simplify? #1/2 (tantheta-cottheta)/(tantheta+cottheta+1)#
- Question #d2f6c
- If #tan^2theta=1-k^2#, then prove that #sectheta+tan^3thetacsctheta=(2-k^2)^(3/2)#?
- Question #36416
- Question #84869
- Question #32e1a
- Question #2f3f7
- How do you prove #sin^2x + cos^2x = 1#?
- Simplify #(cscx-sinx)/(sinxcscx)#?
- Question #08ca1
- Question #19476
- Question #2753c
- Question #0038f
- How can one prove that #ln(sec^2x+csc^2x) = ln(sec^2x)+ln(csc^2 x)#?
- How do you prove that #-2cosbeta(sin alpha - cosbeta) = (sin alpha - cosbeta)^2 + cos^2beta - sin^2alpha#?
- How do you prove that #9sec^2u - 5tan^2u = 5 + 4sec^2u#?
- Question #2e707
- Question #9667f
- Question #4d1cc
- Question #f5744
- Question #d17b0
- Question #17b3b
- How do you prove the identity #sec u - tan u = cos u/(1+sin u)# ?
- Question #348ea
- Question #6b326
- Question #45a11
- How do you prove the trig identity #(sinucosu)/(cos^2u-sin^2u)=tanu/(1-tan^2u)#?
- Question #ebba1
- Question #7d8c7
- How do you solve #cosx+ cos(3x) =0#?
- How do you show that #csctheta = (1+ sec theta)/(tan theta + sintheta)#?
- Question #24406
- Question #885b2
- #(1 + sec^2x) / (1 + tan^2x) = 1 + cos^2x# ?
- How do you prove #(sec x + tan x)(1 - sin x) = cos x# ?
- Question #8a5b0
- Question #69758
- Question #cf786
- Question #a9ac6
- Question #7987e
- Question #5990c
- Question #eabbb
- #(sinx-sinxcosx)/(sinx+sinxtanx)=(1-cosx)/(1+tanx)#?
- Question #63b1d
- Question #63bfa
- Question #1b893
- Question #422ca
- Question #969a8
- Question #56b16
- Question #5f3d6
- Question #7193d
- Prove that #(1-sinx)/secx=cos^3x/(1+sinx)#?
- Question #5abd9
- Question #71076
- Question #ba1cf
- Question #ed6c3
- Question #57b11
- Question #d1ec6
- Simplify #sinxcosxsecx#?
- Question #93c73
- Question #0571d
- Question #09574
- Question #eac46
- Question #cb109
- Question #26441
- Question #d800a
- Question #c2ed7
- Question #ad7d3
- Question #5060b
- Question #de3ed
- Question #0654f
- How to prove the following? #cot^(-1)7+cot^(-1)8+cot^(-1)18=cot^(-1)3#
- Question #7facb
- Question #1d35a
- Question #c21e2
- Question #cc4ce
- Question #6e55f
- Question #dec07
- Question #66d08
- Question #1cf76
- Question #68cf7
- How do you prove: #(4sin^2x)/(2sinx+1)=2sinx-1#?
- Question #c4d85
- Question #fbd74
- Question #23c32
- Question #d7b02
- Prove that #cos^2+tan^2cos^2x=1#?
- Question #1bd72
- How do you prove that #(secx + tanx)/(cosx + cotx) = sinxsec^2x#?
- Prove that: #((1+tanx)/sinx)+((1+cotx)/cosx)=2(secx+cosecx) #?
- Simplify #(cotxtanx)/sinx#?
- Question #1f5ff
- Proof cos(x+y) cos(x-y)= cos2x + cos2y - 1 ?
- Proof #cos(x+y) cos(x-y)= cos^2x + cos^2y - 1#?
- How do you show that #sintheta(cot theta + tantheta) = sec theta#?
- Question #58bec
- Question #a32b3
- Question #de713
- Problem (1) For what value of #x#, #sinx+cosx=2# Problem (2) For what value of #x#, #sinxcosx=1#?
- Question #246a9
- Question #5c3be
- Question #e17aa
- Question #0022e
- Question #f8eca
- Question #f5dd6
- Question #db1ea
- Question #62f68
- Question #1be0a
- Question #c12a4
- Sin⁴∅/x + Cos⁴∅/y=1/x+y then prove sin¹²∅/x to the power 5 + cos¹²∅/y to the power 5=1/(x+y) to the power 5?
- Question #aa2dc
- Simplify #(tan(theta-beta)+tanbeta)/(1-tan(theta-beta)tanbeta)#?
- Question #1e28e
- Question #d6ecb
- Question #ca93b
- Question #f96ba
- Prove this: #(1-sin^4x-cos^4x)/(1-sin^6x-cos^6x)=2/3#?
- Question #f1b58
- Prove it: #sqrt((1-cosx)/(1+cosx))+sqrt((1+cosx)/(1-cosx))=2/abs(sinx)#?
- Prove it: #tan^5x=((1/(1-sinx)^2)-(1/(1+sinx)^2))/((1/(1-cosx)^2)-(1/(1+cosx)^2)#?
- What is the difference between proving and solving when it comes to trigonometric identities?
- Question #18b64
- Question #9e76f
- Question #1cfd6
- Can you help me with this problem: #sinx+cosx=sinxcosx#? Please?
- Question #1381d
- Question #963f8
- Can anyone help me verify the following identity? cosx/(secx)(sinx)=cscx-sinx
- Question #ea44f
- Prove that #sec^2x/(sec^2x-1)=csc^2x#?
- Question #f4b07
- Question #47a87
- How do you prove that #1 - cos(5theta)cos(3theta) - sin(5theta)sin(3theta) = 2sin^2theta#?
- Question #081fa
- Question #e4ae3
- Question #8e102
- Question #b0f0b
- Prove that #cot^2x-cos^2x=cot^2xcos^2x#?
- Question #ac0e3
- Question #93741
- Question #0ca29
- Question #78f8a
- Question #923f4
- How do you prove that #1/2 sin^(-1) (4/5) = tan^(-1) (1/2)# ?
- Question #61ed8
- Prove that # sin^2x + sin^2xcot^2x -= 1# is an identity?
- Prove that #(tanx+tany)/(tanx-tany)=2cscx#?
- Can you prove #1- \cos ^ { 2} x = \sin x \cos x \tan x#?
- Question #50ca2
- Question #bca2e
- Question #05ce8
- Verify? #2cosx-secx=cosx-tanx/cscx#
- Question #30f23
- Question #0860e
- Question #49d56
- Question #8154d
- Question #89f3f
- Question #2712b
- Question #be269
- Question #1ae2e
- Question #e9930
- Question #b725f
- Question #ed919
- Question #a263e
- Question #cf8dc
- Question #4c761
- Question #ca9fe
- How do we prove that #(1 - tan theta)/(1 + tan theta) = (cot theta - 1)/(cot theta + 1)#?
- Question #3d5bd
- Question #95289
- Question #4e1e9
- Question #0e37b
- Question #c20a4
- Question #86fbc
- Question #f4659
- Question #bc7b6
- Prove that #secx-tanx=sqrt((1-sinx)/(1+sinx)#?
- Question #37bc4
- How do we simplify #(1 - tanx)/(1 - cotx)#?
- Question #da28a
- Question #0e194
- Question #0ac31
- Question #71ebe
- Question #6aefa
- Question #04cb2
- Question #5bf52
- Question #54fdd
- Prove that #(cscx)/(1+cscx)-(cscx)/(1-cscx)=2sec^2x#?
- Question #4d95b
- How do you prove that #(cos(2x) + sin^2x)/cosx = cosx#?
- Question #659d8
- Question #2fe56
- Question #5c457
- Question #f15cd
- Question #360f2
- How do we show that #(sinx - cosx)/sinx + (cosx -sinx)/cosx = 2 - secxcscx#?
- Question #f2ee0
- Question #d5338
- Question #4e767
- Question #40bb3
- Question #52cf0
- How do you show that #(cscx - cotx)^2 = (1 - cosx)/(1 + cosx)#?
- What is #sin^2 3x+cos^2 3x#?
- Question #84c50
- How do you show that #1 + tan^2x = sec^2x#?
- Question #def7c
- Question #28f4a
- Question #6b048
- Question #8bd05
- Question #f1f92
- Prove that # cos A / (1- tan A) + sin A / (1- cot A) -= cos A + sin A #?
- Question #011db
- How do you prove that #(1 + tan^2x)/(1 + cot^2x) = ((1 - tanx)/(1 - cotx))^2#?
- Show that? : # tan(arcsinx) = x/sqrt(1 -x^2) #
- Prove that # (sinx)^(sqrt(2)) =tan x #?
- Simplify the expression # secx/tanx #?
- Simplify #sintheta(csctheta+sinthetasec^2theta)#?
- How do I prove that #(tanx-sinx)/(tanxsinx)=(1-cosx)/sinx#?
- Question #6319b
- If #y=(sinx-cosx)/(sinx+cosx)#, then find the value of #1+y^2#?
- Question #3acab
- How do I evaluate #cos48cos12#?
- How do I prove that #cscx-sinx=cosxcotx#?
- Question #588d8
- Question #8f91f
- Tan(x+pi/4)=1+2sinx cosx/1-2sin^2 x prove?
- Question #4d676
- if #sinx+cosx=a# find #sin^3(x)+cos^3(x)# in terms of #a#?
- Question #d6553
- Prove that # 1/(csctheta+1) + 1/(csctheta-1) -= 2sec theta \ tan theta #?
- Question #c528c
- Question #fda82
- Prove that? : # arcsin ( (x-1)/(x+1) ) = 2arctan sqrt(x) - pi/2 #
- Simplify # cot(-x) sinx #?
- Simplify # cot theta - tan theta #?
- How do you verify the identity (1-sin(X))/cos (X) = cos (X)/ (1 + sin (X)? Thank you!
- Prove? #secx/sinx-cscx/secx=tanx#
- How do I prove that #2 sin ((C+D)/2) cos ((C-D)/2) = sin C+sin D#?
- How do I prove #(sec x/cos x)+(csc x/sin x)=4 csc^2(2x)#?
- Question #c9323
- How do i prove that #csc 2x+cot 2x=cot x#?
- Question #3e1fb
- Question #65a17
- Question #c02dc
- If #sin2A+sin4A=1# then prove that #tan^2A-tan^4A=1#?
- Question #d325d
- Question #d2d69
- How do you prove #1-4sin^4(x)=cos(2x)(1+2(sin^2)x)# ?
- Question #132a1
- Simplify #cosx+sinx/cotx#?
- Prove that #sinA/(1-cosA) + cosA/(1-tanA) -= sinA+cosA#?
- Is #tan^2x -= sec^2x - 1# an identity?
- Prove that #(cosx+secx)^2 -= sec^2x+2+ cos^2x#?
- Are the following equations or identities?
- Prove the trig identity?
- Solve the equation #(1+sinx)/(1-sinx)=2sec^2x+2secxtanx-1#?
- How do you establish the identity for the following trigonometric equation?
- Prove #cos(x)+sin(x)tan(x)=sec(x)#?
- Show that? # (1-tan^2x)/(1+tan^2x) = cos^2-sin^2x #
- Question #2ab1a
- How do you verify the identity below?
- Prove that # (1-tan^2 theta) / (1+tan^2 theta) -= cos(2 theta) #?
- Prove that? # (cos^4 x - sin^4 x)/(1-tan x) -= cos^2 x +sin x cos x #
- Prove that # (sin4t)/4 -= cos^3tsint-sin^3tcost #?
- Prove that # sqrt((1-cosx)/(1+cosx)) -= (1-cosx)/(|sinx|) # ?
- Question #ba02a
- #1-2sina*cosa÷2=sin^2(45^@-a)#?
- How to establish this identity?
- Verify the Identity? Sinx / 1-cos^2x = cscx
- How do you prove: #("cosec"(x - B))/ sec(x + B) = (1 - tan x tan B) / (tan x - tan B)# ?
- Prove the identity? sin((pi/(6))+x)=(1)/(2)(cos x +sqrt(3sinx)))
- Prove that #Cos^6(x)+sin^6(x)=1/8(5+3cos4x)#?
- Prove #Cos^2A+Sin^2A*cos2B=cos^2B+sin^2B*cos2A#?
- Cot B + cos B divided by sec B - cos B = csc B + 1 divided by tan^2 B can it be verified?
- Sin B ( sin B + cot B ) = 1 + cos A - cos^2 A ?
- How do you prove? #[cos(pi/2-x)-2cos(pi/2-x)sin^2x+cos(pi/2-x)sin^4x]sec^5(-x) = tanx#
- Verify the identity #sin x cos x(tan x + cot x) = 1 #?
- How do I prove this equation is an identity? Sin(x)/csc(x)+Cos(x)/Sec(x)=1
- Cscx/cotx+tanx= cosx?
- Prove cos^2x tanx / sinx = cosx?
- Prove/verify the identities: #tan(x+(3pi)/4) = (tanx-1)/(1+tanx)#?
- Prove the identity. #sin(pi+x)=-sinx# Have to show the statements and the rules?
- How do I prove this? cot(x)(1-cos(2x))=sin(2x)
- How do you prove that: #(sin^2 x+ cos^2 x + cot^2 x) / (1+tan^2 x) = cot^2 x# ?
- Prove that: cos pi/12-sin pi/12=1/root 2.What should be the answer for this question?
- How do you prove #(tanx+sinx)/(2tanx)=cos^2(x/2)#?
- How do you prove #(1+tan^2x)/(1-tan^2x)=1+tan2x.tanx# ?
- How do you use trig identities to show that this is true? #tan^3x/(1+tan^2x)+cot^3x/(1+cot^2x)=(1-2cos^2x sin^2x)/(sinxcosx)#
- How do you prove that #sqrt(3)cos(x+pi/6) - cos(x+pi/3) = cos(x)-sqrt3sinx# ?
- Prove the identity # sin theta/ (1-cos theta) - 1/sin theta -= 1/tan theta #?
- Prove that ??#(Sinx+Sin2x+Sin3x)/(cosx+cos2x+cos3x) = tan2x#
- Prove that #(1+cosx)/sinx=sinx/(1-cosx)#?
- Please simplify #arctan(x+2)-arctanx# ? Thanks
- How do you prove that #cos2x+cosx=(cosx+1)(2cosx-1)#?
- Prove the trigonometric identity?