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MIT 18.02 Multivariable Calculus, Fall 2007 4 Online

OpenStudy (anonymous):

at the end of lecture 17, when talking about rotating around a point on circumference, Professor Aroux set the inner upper limit to be 2acos(angle), but why not just 2a? Thanks

13 years ago

OpenStudy (anonymous):

Because that limit is varying, as you can notice, when you take, for example, a/2 in the x axis, the distance between the origin and "r" is different than the distance when you take x=2a. |dw:1354775027342:dw|

13 years ago

OpenStudy (anonymous):

oh, thanks

13 years ago

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