Hey guys.

I'm in the middle of this crazy exercise and I got stuck in this ugly integral in the bottom of the page, any ideas on how to solve it?

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- Aug 11th 2008, 10:35 AMasi123integral
Hey guys.

I'm in the middle of this crazy exercise and I got stuck in this ugly integral in the bottom of the page, any ideas on how to solve it? - Aug 11th 2008, 11:02 AMwingless
What's the original question?

- Aug 11th 2008, 11:08 AMasi123
The question is to find the area of this surface (in the pic).

What it means, is to find the surface area of the cylinder between z=0 and z=sqrt(x^2+y^2). - Aug 11th 2008, 12:42 PMThePerfectHacker
(It is assume that )

Let be the disk .

Then what you are looking for is .

Where .

This means, and

Thus, we end up with