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nubeer
 5 years ago
find the area of the surface generated by revolving r^2=cos2x about y axis.
this question is related to polar coordinates.
nubeer
 5 years ago
find the area of the surface generated by revolving r^2=cos2x about y axis. this question is related to polar coordinates.

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TuringTest
 5 years ago
Best ResponseYou've already chosen the best response.0\[r^2=\cos(2x) \]? strange to have r in terms of x like that. If it is in polar coordinates it should be \[r^2=\cos(2\theta)\]though I'm not sure how to revolve that about the yaxis... Please be sure the questions is posted properly.
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