Question: please explain in simple steps Find the partial derivatives of the function -3x - 9y f(x, y) = 9y - 81 f=(I, y) = (9y

please explain in simple steps

Find the partial derivatives of the function -3x - 9y f(x, y) = 9y - 81 f=(I, y) = (9y - 8x) 2 51x + 54y fyl I, y) (9) = 8x )2 Note: You can earn partial

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