यदि sin theta=(p^2-1)/(p^2+1) तो cos the...

यदि `sin theta=(p^2-1)/(p^2+1)` तो `cos theta` बराबर है -

A

`(2P)/(P^2-1)`

B

`(2P)/(1+P^2)`

C

`(2P)/(P^2+1)`

D

`(P)/(1+P^2)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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