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 3 × 3, and B is 3 × 3.
A. 3 × 6; 3 × 6
B. 3 × 3; 3 × 3
C. 6 × 3; 6 × 3
D. 1 × 1; 1 × 1
Answer: B
Mathematics
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