# Math Help - [SOLVED] Integration by Substitution

1. ## [SOLVED] Integration by Substitution

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

2. 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?

3. Nevermind, I misread the question. Go Jhevon

4. yes thank you