The lateral surface area S of a right circular cone is related to the base radius r

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The lateral surface area S of a right circular cone is related to the base radius r and height h by the equation S = πr√r2 + h2.

a. How is dS/dt related to dr/dt if h is constant?

b. How is dS/dt related to dh/dt if r is constant?

c. How is dS/dt related to dr/dt and dh/dt if neither r nor h is constant?

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Thomas Calculus Early Transcendentals

ISBN: 9780321884077

13th Edition

Authors: Joel R Hass, Christopher E Heil, Maurice D Weir

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