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(d)/(dx) [ 2 cot^(-1) ((sqrt(1+ sin x) +...

`(d)/(dx) [ 2 cot^(-1) ((sqrt(1+ sin x) + sqrt(1-sin x))/(sqrt(1+ sin x) - sqrt(1-sin x)))]=`

A

1

B

0

C

`-1//2`

D

`1//2`

Text Solution

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The correct Answer is:
A
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