Okay so I'm having trouble formulating this integral. The region is bounded by:

and

rotated about:

I tried using shells.. It didn't really work for me

Thanks,

CC

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- May 1st 2010, 07:56 AMCalculusCrazedRotated about the...
Okay so I'm having trouble formulating this integral. The region is bounded by:

and

rotated about:

I tried using shells.. It didn't really work for me

Thanks,

CC - May 1st 2010, 12:06 PMFailure
- May 1st 2010, 12:11 PMskeeter
- May 2nd 2010, 01:07 PMCalculusCrazed
Okay so you did R meaning the radius of the big circle and r for the little. How did you find the bounds?

- May 2nd 2010, 01:17 PMskeeter
- May 2nd 2010, 01:26 PMCalculusCrazed
Okay, so why did you do R^2 - r^2?

- May 2nd 2010, 01:35 PMskeeter
volume by the method of washers ... a washer is a disk with a hole in it.

The Washer Method for Solids of Revolution - May 2nd 2010, 03:57 PMCalculusCrazed
The little circle minus the big circle. Okay I guess I just don't get how you got root 7 to 4

- May 2nd 2010, 06:35 PMskeeter
- May 2nd 2010, 06:47 PMCalculusCrazed
...plug in zero for y in other words.

Thank you for your concern.