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September 21, 2014

September 21, 2014

Posted by **haritha** on Wednesday, October 16, 2013 at 5:03am.

- maths -
**Steve**, Wednesday, October 16, 2013 at 5:31amv = x(31-2x)(20-2x)

dv/dx = 12x^2 - 204x + 620

dv/dx=0 when x=3.96

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