Question: Let A be the 3 x 3 matrix whose (i, j)-th entry is a ij = i + 2j, and let B be the 3

Let A be the 3 x 3 matrix whose (i, j)-th entry is aij = i + 2j, and let B be the 3 x 3 matrix

whose (i, j)-th entry is bij = 2i - j. Compute the products AB and BA.

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