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September 19, 2014

September 19, 2014

Posted by **Ryan** on Wednesday, January 6, 2010 at 9:27pm.

I truly appreciate all of ya'll help! Thanks!

- Calculus -
**drwls**, Wednesday, January 6, 2010 at 11:46pmDifferentiate with respect to r ONLY

dV/dr = (2/3)pi r H @ r = a

= (2/3) pi a H

Usually when you talk about rates it is with respect to time. If you knew the rate that r was increasing, you could multiply it by dV/dr above to get that rate.

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