Question: Find a unit vector in the direction in which f(x, y) = 3x y* increases most rapidly at P(-1, 1), and find the rate of

Find a unit vector in the direction in which f(x, y) = 3x y* increases most rapidly at P(-1, 1), and find the rate of change of f at P in that direction. NOTE: Enter the exact answers. u = II(I 'I-)fAll

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