In Exercises 38, find the products AB and BA, or state that a given product is not
Chapter 7, Problem 574(choose chapter or problem)
In Exercises 38, find the products AB and BA, or state that a given product is not possible.A = C 010 100 001 S, B = C 2 -3 4 1 2 -3 -2 1 -1 S
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