Chapter 8.3, Problem 8CVC

To determine

To fill: The blank spaces in the statement, “If $A$ is of order $m\times n$ and $B$ is of order $n\times p$, then the product $AB$ is an $m\times p$ matrix. To find the product $AB$, it is required that the number of columns in matrix $A$ must be equal to the number of rows in matrix $B$.”