Find the linearization L(x,y) of the function f(x,y)=x²-7xy +6 at Po(2,3). Then find an upper bound for the magnitude |E| of the error in the approximation f(x,y) L(x,y) over the rectangle R: x-21 ≤0.2, ly-3| ≤0.2 The linearization of fis L(x,y)= KIED

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