int(x^(3)sin[tan^(-1)(x^(4))])/(1+x^(8))...

`int(x^(3)sin[tan^(-1)(x^(4))])/(1+x^(8))dx=`

A

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

B

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

C

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

D

`1//4 sec [ tan^(-1) (x^4 )]+C`

Verified by Experts

The correct Answer is:

C

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