Find the maximum of f(x, y) = 2x + 2y – x²-} - xy on the square, 0 s xs a,0sysa, a = 3. Edge a0 - Bdge aa (a) First, locate the critical point of f in the square and evaluate f at this point. (Use symbolic notation and fractions where needed.) f = (b) On the bottom edge, y = 0 and f(x, 0) = 2x – x². Find the maximum value of f on the bottom edge. (Use symbolic notation and fractions where needed.) (c) Find the maximum values of f on the remaining edges. (Use symbolic notation and fractions where needed.) fielt = fop = frigh =

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