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

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

Verified by Experts

The correct Answer is:

`-(1)/(2sqrt(2))log|(sqrt(1+x^(2))-sqrt(2)x)/(sqrt(1+x^(2))+sqrt(2)x)|+C`

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