Chapter 7, Problem 1RE

Dimension of a Matrix: In Exercises 1-4, determine the dimension of the matrix.

$\left[\begin{array}{cc}-1& 3\end{array}\right]$

To determine

The dimension of the matrix, $\left[\begin{array}{cc}-1& 3\end{array}\right]$.

Answer to Problem 1RE

The dimension of the matrix, $\left[\begin{array}{cc}-1& 3\end{array}\right]$, is $1\times 2$.

Explanation of Solution

Consider the matrix, $\left[\begin{array}{cc}-1& 3\end{array}\right]$.

The dimension of a matrix is represented as $m\times n$, where $m$ denotes the number of rows and $n$ denotes the number of columns.

In the above matrix, the number of rows is $1$ and the number of columns is $2$.

Thus, the dimension of the matrix is $1\times 2$.