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int(4x^3)/(sqrt(x^(4)-1))dx=...

`int(4x^3)/(sqrt(x^(4)-1))dx=`

A

`2sqrt((x^(2)-1)/(x^(2)+1))+c`

B

`log(x^(2)+sqrt(x^(4)-1))+tan^(-1)x+c`

C

`(1)/(2sqrt(x^(4)-1))+c`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
D
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