Suppose f (x, y) = , P = (-2, -1) and v = 2i - 4j. A. Find the gradient of f. (Vƒ)(x, y) =i+j Note: Your answers should be expressions of x and y; e.g. "3x - 4y" B. Find the gradient of f at the point P. (Vf) (P) =i+j Note: Your answers should be numbers C. Find the directional derivative of f at P in the direction of v. (Duf)(P) = | Note: Your answer should be a number

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