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

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

A

`-2+sqrt(5)`

B

`sqrt(5)-1`

C

`(9-4sqrt(5))(2+sqrt(5))`

D

`(9+4sqrt(5))(2-sqrt(5))`

Text Solution

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The correct Answer is:
B, C
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