**Product of Two Matrices**

Let *A *be an m n matrix and let *B *be an n k matrix. To find the element in

the *i*th row and *j*th column of the **product matrix ***AB*, multiply each element in

the *i*th row of *A *by the corresponding element in the *j*th column of *B*, and then

add these products. The product matrix *AB *is an m k matrix.

Example:-

A = and B

Then AB =