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If y=tan ^(-1) (sqrt( 1+x^(2))-x),then ...

If ` y=tan ^(-1) (sqrt( 1+x^(2))-x),then ( dy)/(dx)=`

A

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

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
A
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