The size of two matrices is given. Find the size of the product AB and the product BA, if the products exist.A is 1 × 3, B is 3 × 1.
A. AB is 1 × 1, BA is undefined.
B. AB is undefined, BA is 3 × 3.
C. AB is 1 × 1, BA is 3 × 3.
D. AB is 3 × 3, BA is 1 × 1.
Answer: C
Mathematics
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