Matrices A and B are given as 4-1 (1 2 3 7 A=-1 0 4 and B=-1 -1 2 - 0 2 2) 1 1 -1 1 (a) Find the value of K if AB = KI, where I is an identity matrix. (b) Hence, find matrix C such that C= AB+101, where I is an 32 3x3 identity matrix.

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