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July 31, 2014

July 31, 2014

Posted by **Joey** on Tuesday, August 9, 2011 at 10:31am.

- Calculus -
**drwls**, Tuesday, August 9, 2011 at 10:42am(a) L = x + 2y = x + 2000/x

(b) 0 < x < L, for obvious reasons

For optimum (minimum) L, dL/dx = 0

1 - 2000/x^2 = 0

x = sqrt2000 = 44.74 feet

y = 1000/x = 22.37 feet

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