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(d)/(dx) tan^(-1) [(sqrt( 1 + sin x) - s...

`(d)/(dx) tan^(-1) [(sqrt( 1 + sin x) - sqrt(1 - sin x))/(sqrt(1 + sin x ) + sqrt(1 - sin x))]` is equal to

A

1

B

`-(1)/(2)`

C

`(1)/(2)`

D

`-1`

Text Solution

Verified by Experts

The correct Answer is:
c
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