Question: please help me answer this 1. Find [A] - 3[B] if 1 2 -1 3 0 1 4 2 [A] = 0 4 -2 1

please help me answer this

please help me answer this 1. Find [A] - 3[B] if 1

1. Find [A] - 3[B] if 1 2 -1 3 0 1 4 2 [A] = 0 4 -2 1 [B] = -1 -2 3 1 3 -1 -1 : 0 1 2 -1

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