Suppose that the cubic function f(x) has three real zeros r1, r2, and r3, Show that its

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Suppose that the cubic function f(x) has three real zeros r1, r2, and r3, Show that its inflection point has x-coordinate (r1 + r2 + r3) / 3.
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Calculus

ISBN: 978-0131429246

9th edition

Authors: Dale Varberg, Edwin J. Purcell, Steven E. Rigdon

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