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

 If y = In(a) where a E 1, 2] is rotated

about the y-axis, then the area of the surface of revolution is

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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