$\displaystyle \int(1-cos^{2}x)cos^{2}xsinx dx$

thanks

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- Sep 7th 2009, 04:52 AMhonestliarHow do you solve this kind of problem?
$\displaystyle \int(1-cos^{2}x)cos^{2}xsinx dx$

thanks - Sep 7th 2009, 05:03 AMmr fantastic
- Sep 7th 2009, 05:23 AMhonestliar
- Sep 7th 2009, 06:10 AMHallsofIvy
What part can you not do for yourself? If u= cos x, what is du? Do you see how that helps?

- Sep 7th 2009, 06:22 AMJML
hint: let u=cos(x) then $\displaystyle \frac{du}{dx} = -sin(x)$