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If cot^(-1)(sqrt(cosalpha))-tan^(-1)(sqr...

If `cot^(-1)(sqrt(cosalpha))-tan^(-1)(sqrt(cosalpha))=x ,` then `sinx` is `tan^2alpha/2` (b) `cot^2alpha/2` (c) `tan^2alpha` (d) `cotalpha/2`

A

`"tan"^2 alpha/2`

B

`"cot"^2 alpha/2`

C

`tan alpha`

D

`"cot" alpha/2`

Text Solution

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The correct Answer is:
A
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  18. If cot^(-1)(sqrt(cosalpha))-tan^(-1)(sqrt(cosalpha))=x , then sinx is ...

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