Q .     The integral ` \int \frac {dx}{x^2(x^4+1)^{\frac {3}{4}}}` equals

JEE 2015 Mains 4 April
A

` (\frac {x^4+1}{x^4} )^{\frac {1}{4}}+c`

B

`(x^4+1)^{\frac {1}{4}}+c`

C

`-(x^4+1)^{\frac {1}{4}}+c`

D

`- (\frac {x^4+1}{x^4} )^{\frac {1}{4}}+c`

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