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If tan(x/2)=cosec x-sin x, thentan^(2)(x...

If `tan(x/2)=cosec x-sin x`, then`tan^(2)(x/2)` is equal to

A

`2- sqrt5`

B

`2+ sqrt5`

C

`-2- sqrt5`

D

`-2+ sqrt5`

Text Solution

Verified by Experts

The correct Answer is:
D
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