Question a) b Let f(x, y) = x³-4xy² x²-2y Find the first partial derivatives of f. Determine whether the limit lim f(x, y) exists or not. (x,y)-(-2,2) Determine whether the function g(x, y) = { f(x, y), (x, y) ‡ (0,0) -1, (x, y) = (0,0) (0,0). is continuous at the points (-2, 2) and

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