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#4 Letf(x,y) = x - 5xy+3y and w= <2, 3 >. Use the limit definition of a directional derivative to compute Dw f(x,y).

#4 Letf(x,y) = x - 5xy+3y and w= . Use the limit definition of a directional derivative to compute Dw f(x,y).

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