Disc method rotating around vertical line | AP Calculus AB | Khan Academy

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Volume of solid created by rotating around vertical line that is not the y-axis using the disc method. Created by Sal Khan.

AP Calculus AB on Khan Academy: Bill Scott uses Khan Academy to teach AP Calculus at Phillips Academy in Andover, Massachusetts, and heÕs part of the teaching team that helped develop Khan AcademyÕs AP lessons. Phillips Academy was one of the first schools to teach AP nearly 60 years ago.

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Комментарии
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Thanks, I needed this last year, but now is fine.

UnlimitedExcess
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Did this last semester, but already forgot everything

Pasashok
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Only your explanation I can totally understand!! Thanks!!

chonylau
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Shouldn't that particular solid have a cylindrical hole going through it of radius 2?
Based on your diagram there is a distance of -2 between the function and the vertical line, so if it was rotated shouldn't that gap be accounted for?

amkibb
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after going through cal 3 integrals like that look ridiculously easy O_o. I didnt think that in cal 2 though

DrEnginerd
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how do you find the limits of integration?

jaepark
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YOU WILL NEVA BE FIRST, MUAHAHA okaynevaminebye

jkattz