Question: In Exercises 21 through 28, evaluate the partial derivatives f x (x, y) and f y (x, y) at the given point (x 0 ,

In Exercises 21 through 28, evaluate the partial derivatives fx(x, y) and fy(x, y) at the given point (x0, y0).

f (x, y) = 3x2 − 7xy + 5y3 − 3(x + y) − 1; at (−2, 1)

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