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question 7 and 8 (7) Compute all the first and second partial derivatives of f(x, y) = In(x + 2y). (8) Determine the critical points

question 7 and 8

(7) Compute all the first and second partial derivatives of f(x, y) = In(x + 2y). (8) Determine the critical points for f(x, y) = 2xy" + 4y -2x + 1

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