(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

[itex]\int (9-x^2)^{5/2} dx [/itex]

2. Relevant equations

3. The attempt at a solution

Letting[tex] x=3sin\theta[/tex] and [tex] dx=3 cos \theta[/tex],

[itex] 243\int(1-sin^2\theta)^{5/2}3 cos \theta d\theta[/tex]

Taking the 3 out gets

[tex] 729 \int (1-sin^2 \theta)^{5/2} cos \theta d\theta [/tex]

I'm not sure where to go from here. Do I combine everything algebraically and then do a u sub? Or do I integrate by parts here?

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# Homework Help: Inegration Frustration

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