If A is a 2 × 3 matrix and B is a 3 × 4 matrix, what is the order of the product AB?
Correct answer: A. 2 × 4
- A. 2 × 4
- B. 3 × 3
- C. 4 × 2
- D. 2 × 3
Explanation
The inner dimensions, 3 and 3, agree, so multiplication is possible. The product takes its outer dimensions, giving a 2 × 4 matrix.
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