The radius of a circle is changing at the rate of -2/ m/sec. At what rate is

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The radius of a circle is changing at the rate of -2/π m/sec. At what rate is the circle’s area changing when r = 10 m?

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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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