The sizes of two matrices A and B are given. Find the sizes of the product AB and the product BA, whenever these products exist.A is 2 × 3, and B is 2 × 3.
A. 3 × 2; 2 × 3
B. 2 × 3; 3 × 2
C. 2 × 2; 3 × 3
D. AB does not exist; BA does not exist.
Answer: D
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