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int((x^(2)-1)dx)/((x^(4)+3x^(2)+1)Tan^(-...

`int((x^(2)-1)dx)/((x^(4)+3x^(2)+1)Tan^(-1)((x^(2)+1)/(x)))=`

Text Solution

Verified by Experts

The correct Answer is:
ln `tan^(-1) ( x + (1)/(x)) + c `
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