Show that f(x, y) = x 2 + 4y 2 4xy + 2 has an infinite

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Show that f(x, y) = x² + 4y² − 4xy + 2 has an infinite number of critical points and that D = 0 at each one. Then show that f has a local (and absolute) minimum at each critical point.

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Then fx 0 and f y 0 each implies so all points of the form ...View the full answer

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