Find all the local maxima, local minima, and saddle points of thefunctions ƒ(x, y) = x3 + y3 + 3x2 - 3y2 - 8

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.5: Graphs Of Functions
Problem 52E
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Find all the local maxima, local minima, and saddle points of the
functions ƒ(x, y) = x3 + y3 + 3x2 - 3y2 - 8

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