Chapter 3, Problem 5SGR

To determine

To fill the blank space: The ….. …….. of a matrix with $4rows$ and $3columns$ are $4\times 3$ .

Answer to Problem 5SGR

The …..dimensions…….. of a matrix with $4rows$ and $3columns$ are $4\times 3$ .

Explanation of Solution

Given information :

Given a matrix with $4rows$ and $3columns$ are $4\times 3$ .

Since dimension of matrix represents the number of rows and columns of that matrix.

For example $A=\left[\begin{array}{l}\begin{array}{ccc}1& 2& 3\\ 0& 3& 4\\ 0& 0& 5\end{array}\\ \begin{array}{ccc}0& 0& 6\end{array}\end{array}\right]$ be matrix with $4rows$ and $3columns$ .

Then the dimension of matrix $A$ is $4\times 3$ .

Hence, the dimension of a matrix with $4rows$ and $3columns$ are $4\times 3$ .