Solved: Horizontal Tangent Plane In Exercises 4146, find the point(s) on the surface at
Chapter 13, Problem 43(choose chapter or problem)
In Exercises 41 - 46, find the point(s) on the surface at which the tangent plane is horizontal.
\(z=x^{2}-x y+y^{2}-2 x-2 y\)
Text Transcription:
z = x^2 - xy + y^2 - 2x - 2y
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