Question: Let f ( x , y ) = x e 2 y - y e 3 x . Then gradf = , and D u

Let f(x,y)=xe2y-ye3x. Then gradf=
, and Duf(1,-1)in the .
direction of the vector (:-2,1:)is
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Let f ( x , y ) = x e 2 y - y e 3 x . Then gradf

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