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Algebra & Trigonometry with Analytic Geometry

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter9: Systems Of Equations And Inequalities

Section: Chapter Questions

Problem 12T

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Question

The function f (x, y) = ,x² + x+ y² – xy + 3 has
a) None of these
b) a critical point at (-2, -1)
c)
a critical point at (-1,-;)
d) no critical points

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