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In regards to the function f(x,y) = xye^y+2x. Find Duf(1,0) in the direction of the vector...

In regards to the function f(x,y) = xye^y+2x. Find Duf(1,0) in the direction of the vector <3,4>. And determine the greatest slope along the surface that occurs at the point (1,0).

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