Question

What are the dimensions of the matrix?

Answer 1

Answer:

• The dimensions of a matrix are the number of rows × the number of columns of the matrix.

• For the example below, the the matrix is 3 × 4.

Explanation:

The dimensions of a matrix is the number of rows × the number of columns of the matrix.

Your matrix is garbled. Thus, to help you I will work with an hypothetical matrix.

Assume the matrix:

        $\left[\begin{array}{cccc}1&0&0&0\\2&4&0&3\\0&0&0&9\end{array}\right]$

That matrix has four colums and 3 rows.

For instance, the first colum is:

            $\left[\begin{array}{c}1\\2\\0\end{array}\right]$        Thus, it has 4 columns.

And the second row is:

          $\left[\begin{array}{cccc}2&4&0&3\end{array}\right]$         Thus, it has 3 rows.

Hence,  the matrix is 3 × 4.

The first number is the number of rows and the second number is the number of columnns.