Question: (a) Find the gradient of f . (b) Evaluate the gradient at the point P. (c) Find the rate of change of f at P

(a) Find the gradient of f .
(b) Evaluate the gradient at the point P.
(c) Find the rate of change of f at P in the direction of the vector u.и 3D+ f (x, у) — х/у, Р(2, 1),

3D+ f (x, ) /, (2, 1),

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