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Mathematics 16 Online
OpenStudy (anonymous):

Consider the function f(x, y) = x^2 + y^2 − xy over D, where D is the region enclosed by the circle of radius 4 centered at the origin. I found the critical point to (0,0). How do you find the absolute maximum value of f(x, y) over D? It hints to use polar regions.

OpenStudy (anonymous):

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