Matrix Multiplication

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If A is a 2 x 3 matrix and B is a 3 x 4 matrix, what is the size of AB?

A.2 x 4

B.3 x 3

C.4 x 2

D.2 x 3

For the product AB to be defined, the number of columns of A must equal the number of:

A.Columns of B

B.Rows of B

C.Rows of A

D.Entries of B

Matrix multiplication is generally NOT:

A.Associative

B.Commutative

C.Distributive

D.Defined

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