Home
Class 11
MATHS
If tan(theta/2)=t then (1-t^2)/(1+t^2) i...

If `tan(theta/2)=t` then `(1-t^2)/(1+t^2)` is equal to

A

`cos theta`

B

`sin theta`

C

`sec theta`

D

`cos 2theta`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

If tan ""(theta)/(2) = t, then the value of (1- t ^(2))/(1+t^(2)) is

If x=(1-t^(2))/(1+t^(2)) and y=(2t)/(1+t^(2)) , then (dy)/(dx) is equal to

If x=e^t sin t , y=e^t cos t , t is a parameter , then (d^2y)/(dx^2) at (1,1) is equal to

If tantheta=t then tan2theta+sec2theta=

If A-B=pi//4 , then (1+t a n A)(1-t a n B) is equal to.............. a. 2 b. 1 c. 0 d. 3

If tan theta =t, then tan 2 theta + sec 2 theta = ............... A) (1+t)/(1-t) B) (1-t)/(1+t) C) (2t)/(a-t) D) (2t)/(1+t)

cos 2 theta is not equal to ................... A) 2 cos ^(2) theta -1 B) 1- 2 sin ^(2) theta C) (1+ tan ^(2) theta)/( 1- tan ^(2) theta) D) (1- tan ^(2) theta)/(1+ tan ^(2) theta)

If theta=60^@ ,then (frac(1+tan^2theta)(2tantheta)) is equal to…….