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March 19th, 2011, 11:09 PM   #1
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set up integral problem

The problem is attachment below, you can see it by click on it. This is tricky problem, I need your help, I actually gave up on it , if you know how to solve for it, please help me, thank you so much.
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March 20th, 2011, 06:00 AM   #2
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Re: set up integral problem

One expression we can use to find c is:



Using a trigonometric substitution, we find:





Using a numeric solver with r = 10, we find:

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March 25th, 2011, 07:48 PM   #3
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Re: set up integral problem

thank you so much !!!
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March 25th, 2011, 07:54 PM   #4
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Re: set up integral problem

I laughed trying to picture a hopped-up Charlie Sheen and "friends" using calculus to cut their pizza!
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