Surface Area of Revolution in Parametric Form

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This video explains how to determine the surface area when a parametric curve is rotated about the x or y axis.

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(-2sin(t))^2 = 4sin^2(t) since if you square a negative it will be positive. Thanks for watching.

Mathispoweru
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Your videos are so awesome and very helpful! 

eleazaralmazan
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Extremely helpful amazing job. Thank you very much

MrBlash