Question: Find : 3A, 4B, 3A+4B, 8A-4B, 8A-4B, AB, BA. A = 1 -2 -4 -5 10 2 80 8 -1 ; B = [1/2 9

Find : 3A,  4B,  3A+4B,  8A-4B, 8A-4B,  AB, BA.


A = 1 -2 -4 -5 10 2 80 8 -1 ; 

A = 1 -2 -4 -5 10 2 80 8 -1 ; B = [1/2 9 3/4 -3 -1 -2 -3 -5 0

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