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Multivariable & Vectoreasy
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Find the directional derivative of the linear function f(x,y)=2x−3yf(x, y) = 2x - 3yf(x,y)=2x−3y at any point in the direction of the vector v=⟨1,1⟩\mathbf{v} = \langle 1, 1 \ranglev=⟨1,1⟩.