int 1/(x^(2)(x^(4)+1)^(3//4)) dx is equ...

`int 1/(x^(2)(x^(4)+1)^(3//4)) dx` is equal to ___________.

A

`(-(1+x^4)^(1/4))/x+C`

B

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

C

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

D

`(-(1+x^4)^(3/4))/x+C`

Verified by Experts

The correct Answer is:

A

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