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If tan(x/2)=cosec x - sin x then the val...

If `tan(x/2)=cosec x - sin x` then the value of `tan^2(x/2)` is

A

`2- sqrt5`

B

`sqrt5-2`

C

`sqrt5+2`

D

`9-4 sqrt5`

Text Solution

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The correct Answer is:
B
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