int((tan^(-1)x)^(3))/(1+x^(2))dx is equa...

`int((tan^(-1)x)^(3))/(1+x^(2))dx` is equal to

A

`3(tan^(-1)x)^2+c`

B

`(tan^(-1)x)^4/4+c`

C

`(tan^(-1)x)^4+c`

D

none of these

Verified by Experts

The correct Answer is:

B

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