Find the directional derivative of the function at P in the direction of v. f (x, y) = 3x – 4cy+ 9y, P(1,2), v =

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Q: 10.Prove that the differential equation (e +1)cosxdx +e sinxdy =0 is exact and solve it.

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Q: QUESTION 10 Which of the following assumptions is not necessary for unbiasedness of a slope…

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Q: The z-transform of x(n) is X(z) = 1 + 2z1, Iz/ # 0. Find the z-transform of the sequence x1(n) = x(3…

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