Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §8.3 Area of a Surface of Revolution, #19 · Calculus · Applications of integrals

The lamp shade is constructed by rotating … around the … axis…

The lamp shade is constructed by rotating $y = 1/ x$ around the $y$ axis, and keeping the part from $y = 1$ to $y = 2$ . Set up the definite integral that gives its surface area.

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §8.3 Area of a Surface of Revolution, #19

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