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If a Is an 2 × 4 Matrix and B

Question 14

Multiple Choice

If A is an 2 × 4 matrix and B is an 4 × 9 matrix, then:


A) BA is defined and has order 2 × 9.
B) BA is defined and has order 9 × 2.
C) AB is defined and has order 9 × 2.
D) AB is defined and has order 2 × 9.
E) Neither AB nor BA is defined.

Correct Answer:

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