Question: f(x, y) =x/y , P(8, 1), u = 3/5i +4/5 j(a) Find the gradient of f.Vf(x, y) =(b) Evaluate the gradient at the point P.Vf(8,

f(x, y) =x/y , P(8, 1), u = 3/5i +4/5 j(a)

f(x, y) =x/y , P(8, 1), u = 3/5i +4/5 j(a) Find the gradient of f.Vf(x, y) =(b) Evaluate the gradient at the point P.Vf(8, 1) =(c) Find the rate of change of f at P in the direction of the vector u.Duf(8, 1) =

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