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(d)/(dx) {Cos ^(-1) ""(sqrt((1 + x)/2))}...

`(d)/(dx) {Cos ^(-1) ""(sqrt((1 + x)/2))}=`

A

`(-1)/( 2sqrt(1- x ^(2)))`

B

`(1)/( 1+ x ^(2))`

C

`(2)/( 1+ x ^(2))`

D

`(2)/( sqrt(1- x ^(2)))`

Text Solution

Verified by Experts

The correct Answer is:
A
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