Calculus 2 Lecture Notes, Section 9.3

Derivation of the lateral surface area formula for a solid of revolution: Lateral Surface Area of a Frustum:, since it is the approximate arc length over the interval [xi-1, xi]. Or, in general: For a curve defined by parametric equations . rotated about the x-axis: For a curve defined by parametric equations . rotated about the line y = c: ................
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