Question: Suppose you have the following function : f ( x, y,z ) =-2 . x2 - 5 . x y+2 . x .z-5 . x-7

Suppose you have the following function : f ( x, y,z ) =-2 . x2 - 5 . x y+2 . x .z-5 . x-7 . y2+ y.z+9 .y-3.z2-9.z We want to find the "extremum" points for the function. Put the F.O.C in the form A y = b How many rows does the matrix A have |3 How many columns does the matrix A have |3 V V What is the matrix A V X what is the optimal value for x V X what is the optimal value for y V X what is the optimal value for z V X What is the Hessian of this probem V X

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