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Let f(x, y) = xey and P = (5, 25). == (a) Calculate ||fp||. (b) Find the rate of change of in the direction

Let f(x, y) = xey and P = (5, 25). == (a) Calculate ||fp||. (b) Find the rate of change of in the direction Vfp. (c) Find the rate of change of f in the direction of a vector making an angle of 45 with Vfp. Answers: (a) (b) (c)

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