In Exercises 77 and 78, find the point(s) on the surface at which the tangent plane is

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In Exercises 77 and 78, find the point(s) on the surface at which the tangent plane is horizontal.

z = 9 - 2x2 + y3

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Calculus Of A Single Variable

ISBN: 9781337275361

11th Edition

Authors: Ron Larson, Bruce H. Edwards

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