The plane z = Ax+By+C is to be "fitted" to the following points (XkYk Zk): (1,0,0). (1,0, -1), (0,-1,-1). (-1,-1,0). Find the values of A, B, and C that minimize 4 Σ (Axk +Byk + C-zk)2, the sum of the squares of the deviations. k=1

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