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October 20, 2014

October 20, 2014

Posted by **Helga** on Monday, November 21, 2011 at 1:43am.

- Calculus -
**Steve**, Monday, November 21, 2011 at 5:04amv = pi/3 r^2 h

since v is a constant, dv = 0

0 = 2rh dr + r^2 dh

When r=h,

2r^2 dr + r^2 dh = 0

2dr + dh = 0

dh = -2dr

dh/dr = -2

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