(1) Let G: R → R? be a differentiable function such that G(1, -1,3) = (2,5) and DG(1, –1,3) = 1 -1 4 0 7 Suppose that F: R? R? is defined by F(r,y) = (2ry, 3r-y+5). What is D(F o G)(1,-1,3)? %3D

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