Recent questions tagged proving trigonometric identities

1 answer

Prove that: (cos theta + cos beta)/(sin beta - sin theta) = (sin theta + sin beta)/(cos theta - cos beta)

asked Aug 5 in Trigonometry Answers by anonymous | 28 views

1 answer

prove that cos(A+B)+sin(A-B)=2sin(45+A)cos(45+B)

asked Jun 27 in Trigonometry Answers by paula | 68 views

1 answer

sin0+cos0+tan0=?

asked Jun 18 in Trigonometry Answers by anonymous | 19 views

1 answer

{sin(x+h) - sin x}/h = {2sin(h/2)cos(x+h/2)}/h

asked Jun 10 in Trigonometry Answers by Romit mishra | 28 views

1 answer

exponential coshx expand

asked May 19 in Other Math Topics by anonymous | 29 views

1 answer

prove 1/(sec(theta)-1)-1/(sec(theta)+1)=2cot^2(theta)

asked Apr 24 in Trigonometry Answers by anonymous | 30 views

1 answer

sinx/tanxcosx

asked Apr 21 in Trigonometry Answers by anonymous | 28 views

2 answers

Cot2x - tan 78 = ( sec x sec 78 )/2

asked Mar 8 in Trigonometry Answers by Mac2016 (400 points) | 76 views

1 answer

tanx +(cosx÷sinx) =1 ÷(sinx × cosx)

asked Feb 28 in Trigonometry Answers by pertunia | 45 views

1 answer

cos^2x-sinx=1

asked Nov 30, 2016 in Calculus Answers by Cam | 34 views

1 answer

Prove the trigonometric equation :(sec x +tan x)/(sec x - tan y)=(1 +2sin x + sin^2 x)/cos x

asked Nov 3, 2016 in Trigonometry Answers by anonymous | 49 views

1 answer

if a=cos?+i sin?,0<?<2p prove that (1+a)/(1-a)=i cot?(?/2) if x+iy=v((a+ib)/(c+id )) prove that (x^2+y^2 )- (a^2+b^2)/(c^2+d^2 )

asked Oct 30, 2016 in Trigonometry Answers by cautionc | 78 views

2 answers

Sinx=tanxcosx

asked Sep 27, 2016 in Trigonometry Answers by Abdul rehman | 72 views

1 answer

Prove the identity

asked Jun 15, 2016 in Trigonometry Answers by Paula | 87 views

1 answer

Prove that, tanA + 2tan2A + 4tan4A + 8cot8A = cotA

asked May 16, 2016 in Trigonometry Answers by Shivam | 282 views

1 answer

prove the following trigonometric identity : sin^2 (theta) + 2 sin (theta)cos (theta) = 1- cos^2 (theta) + sin 2(theta)

asked Feb 8, 2016 in Algebra 2 Answers by nikki | 75 views

1 answer

prove the following trigonometric identity : tan theta + cot theta - 2cosec 2 theta = 0

asked Feb 8, 2016 in Algebra 2 Answers by nikki | 72 views

1 answer

prove the following trigonometric identity sin^2 theta + 2 sin theta cos theta = 1- cos ^2 theta + sin 2 theta

asked Jan 31, 2016 in Trigonometry Answers by nikki | 69 views

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