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If y=tan^(-1) ((1+x)/(1-x)) then (dy)/(d...

If `y=tan^(-1) ((1+x)/(1-x))` then `(dy)/(dx)=`

A

` 1-x^(2) `

B

` 1+ x^(2) `

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
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