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int ((x^2-1)x)/(x^4sqrt(2x^4-2x^2+1))dx ...

`int ((x^2-1)x)/(x^4sqrt(2x^4-2x^2+1))dx` is equal to :

A

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

B

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

C

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

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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