यदि y=(x^2-1)/(x^2+1) , तब (dy)/(dx) है...

यदि `y=(x^2-1)/(x^2+1)` , तब `(dy)/(dx)` है

A

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

B

`1`

C

`(4x)/(x^2+1)^2`

D

`(4x)/(x^2+1)`

Verified by Experts

The correct Answer is:

C

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