Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §8.1 Areas and Volumes by Slices, #26 · Calculus · Applications of integrals

… (rotate the region where …)

Draw the region bounded by the curves. Find the volume when the region is rotated (a) around the x axis (b) around the y axis.

$x^{2} - y^{2} = 9, x + y = 9$ (rotate the region where $y ⩾ 0$ )

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §8.1 Areas and Volumes by Slices, #26

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