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sunsunsun1225
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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
 one year ago
 one year ago
sunsunsun1225 Group Title
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
 one year ago
 one year ago

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Umangiasd Group TitleBest ResponseYou've already chosen the best response.0
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
 one year ago

sunsunsun1225 Group TitleBest ResponseYou've already chosen the best response.0
oh, thanks
 one year ago
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