Solved: In Exercises 5156, find the point(s) on the surface at which the tangent plane
Chapter 13, Problem 54(choose chapter or problem)
In Exercises 51–56, find the point(s) on the surface at which the tangent plane is horizontal.
\(z=4 x^{2}+4 x y-2 y^{2}+8 x-5 y-4\)
Text Transcription:
z=4x^2+4xy-2y^2+8x-5y-4
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