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Old 11-29-2007, 07:38 PM
bigpooch bigpooch is offline
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Join Date: Sep 2003
Location: Hong Kong
Posts: 1,330
Default Re: Antiderivative problem

You mean

1000x
-------
x^2 + 16

for the last one.

Hint: d/dx (ln u) = (du/dx)/u
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