Test the functions for local maxima and minima and saddle points. Find each functions value at these

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Test the functions for local maxima and minima and saddle points. Find each function’s value at these points.

ƒ(x, y) = x2 - xy + y2 + 2x + 2y - 4

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Thomas Calculus Early Transcendentals

ISBN: 9780321884077

13th Edition

Authors: Joel R Hass, Christopher E Heil, Maurice D Weir

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