For the integral [tex]\int frac{x^3}{sqrt{1-x^2}} dx}[/tex](adsbygoogle = window.adsbygoogle || []).push({});

==> okay...

what I meant was:

int of x^3 over sqrt(1-x^2)

--I trig substitute to get sin^(3)(x)cosxdx over cos x

and end up with sin^3(x)...this is obviously wrong, can anyone point out what i did wrong?

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# Homework Help: For this trig substitution

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