1.

`(1)/(x(x^(n)+1))`

Answer» Correct Answer - `(1)/(n)log[(x^(n))/(1+x^(n))]`
`int(dx)/(x(x^(n)+1))=int(x^(n-1))/(x x^(n-1)(x^(n)+1))dx=int(x^(n-1))/(x^(n)(x^(n)+1))dx`
अब `x^(n)=t` रखने पर


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