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If tan((pi)/(2)-(theta)/(2))=sqrt(3), th...

If `tan((pi)/(2)-(theta)/(2))=sqrt(3)`, then the value of `costheta` is.

A

`(1)/(sqrt(2))`

B

`(1)/(2)`

C

0

D

`(sqrt(3))/(2)`

Text Solution

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The correct Answer is:
B
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