The Sizes of Two Matrices a and B Are Given $A$

question 12

Multiple Choice

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 $3 \times 2$ , and B is $2 \times 3$ .

• A) \( 2 \times 2 ; 3 \times 3 \)
• B) \( 3 \times 3 \); BA does not exist.
• C) \( \mathrm{AB} \) does not exist: \( 2 \times 2 \)
• D) \( 3 \times 3 ; 2 \times 2 \)

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Definitions:

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