Question: If y = In(a) where a E 1, 2] is rotated about the y-axis, then the area of the surface of revolution is given by
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If y = In(a) where a E 1, 2] is rotated about the y-axis, then the area of the surface of revolution is given by 2 2 TT dx 1 or 2 2TT 1 + dy. 1
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