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

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

Text Solution

Verified by Experts

The correct Answer is:
`(1)/(2sqrt(2))log|(x^(2)+1-sqrt(2)x)/(x^(2)+1+sqrt(2)x)|+c`
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