Question: Let A = {1 x,2 y,4 z}, B = {3 x,1 y,5 z}. Write out AB, AB, AB, BA, and AtB.

Let A = {1 x,2 y,4 z}, B = {3 x,1 y,5 z}.

Write out AB, AB, A\B, B\A, and AtB.

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