Chapter 2.3, Problem 2CFU

To determine

To find: the dimensions of the matrix.

Answer to Problem 2CFU

  $2\times 4$

Explanation of Solution

Given information:

The given matrix is as follows:

  $\left[\begin{array}{cccc}\begin{array}{l}4\\ -1\end{array}& \begin{array}{l}0\\ 3\end{array}& \begin{array}{l}-2\\ -1\end{array}& \begin{array}{l}4\\ 5\end{array}\end{array}\right]$

Calculation:

Let R be the rows and C be the column. The rows and column can be represented as follows:

  $\begin{array}{l}\begin{array}{cccc}\text{ C1}& \text{C2}& \text{C3}& \text{C4}\end{array}\\ \begin{array}{c}\text{R1}\\ \text{R2}\end{array}\left[\begin{array}{cccc}\begin{array}{l}4\\ -1\end{array}& \begin{array}{l}0\\ 3\end{array}& \begin{array}{l}-2\\ -1\end{array}& \begin{array}{l}4\\ 5\end{array}\end{array}\right]\end{array}$

The number of rows and column in the given matrix is 2 and 4 respectively. Thus, the dimensions are $2\times 4$ .