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Let f(x,y) Зуз ya a) Find the gradient of f at (1, -1). b) Find the directional derivative of f at the point (1,-1) in t
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Let f(x,y) Зуз ya a) Find the gradient of f at (1, -1). b) Find the directional derivative of f at the point (1,-1) in t
Let f(x,y) Зуз ya a) Find the gradient of f at (1, -1). b) Find the directional derivative of f at the point (1,-1) in the direction of the vector (2, -3). c) At the point (1, -1), in which direction does the directional derivative of f attain its largest value? d) What is the largest value of the directional derivative off at the point (1, -1)?
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