f(x, y) = xy (a) Circle the figure that represents the contour diagram for f. Y 5 H 5 X (b) Compute the gradient of f. 3. 5 5 CT Y x Vf(x, y) (c) Plot the contour diagram for f and the the vector field corresponding to Vƒ. 5 сл سے ان x 5 (d) True / False: The gradient of a function is orthogonal to its contours. x

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