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

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

A

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

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
A
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