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Compute the the directional derivative Da(f) of f(x, y) = xy + x³ at the point (1, 2) and in the direction of (1,-1).
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Compute the the directional derivative Da(f) of f(x, y) = xy + x³ at the point (1, 2) and

in the direction of (1,-1).

User Kupsef
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Compute the the directional derivative Da(f) of f(x, y) = xy + x³ at the point (1, 2) and-example-1
User Onuray Sahin
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