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 = 2xy + 3x + 5y
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Related Book For
Calculus Of A Single Variable
ISBN: 9781337275361
11th Edition
Authors: Ron Larson, Bruce H. Edwards
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