[SOLVED] Integration by Substitution

**vinson24** · March 14th 2009, 06:14 PM

integrate x/sqrt(1-x^4) dx

**Jhevon** · March 14th 2009, 06:24 PM

Originally Posted by vinson24

integrate x/sqrt(1-x^4) dx

do a substitution. let $u = x^2$ , then your integral becomes $\frac 12 \int \frac 1{\sqrt{1 - u^2}}~du$

now do you see what to do? do you see how that substitution works?

**TheEmptySet** · March 14th 2009, 06:25 PM

Nevermind, I misread the question. Go Jhevon

**vinson24** · March 14th 2009, 06:27 PM

yes thank you

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