Question: (1 point) Find all the first and second order partial derivatives of f(x, y) = 7 sin(2x + y) - 3 cos(x - y). A.

(1 point) Find all the first and second order partial derivatives of f(x, y) = 7 sin(2x + y) - 3 cos(x - y). A. of = fx ax B. = f,= C. OJ = fxx = dx 2 D. dy 2 of = fvy = E. 8f = f yx = axdy F. of = fxy = dydx

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