Homework Help: Volume integration of sphere

1. Oct 10, 2011

geft

I can't seem to get the answer. How to integrate when it's this complicated?

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2. Oct 10, 2011

LawrenceC

Assuming correctness up to the next to last line, you can look up the integral of (sinx)**3. The integral of sinx(cosx)**2 is like a**u du because you have du which is sinx * dx.