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If y = (1+ x ^(2))Tan^(-1) x then y (2)...

If `y = (1+ x ^(2))Tan^(-1) x` then ` y _(2) =`

A

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

B

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

C

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

D

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

Text Solution

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The correct Answer is:
A
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