Question: QUESTION 9 Partial Derivatie Choose one . 10 points Calculate ar of if f(x, y) = xy + xy2 O of L = 2cy +

QUESTION 9 Partial Derivatie Choose one . 10 points Calculate ar of if f(x, y) = xy + xy2 O of L = 2cy + yz ar O of = 2x + y' O of = 2ry + 2y QUESTION 10 Second Order Partial Derivative Choose one . 10 points Calculate - of if f(x, y) = xy + ry2 dyer O a2 f - 2x + 2y ayor O a2 f 2y ayer O a2 f = 21 + 2 ayar

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