$\"\"$

The matrix is $\"\"$ .

Find $\"\"$ .

Since $\"\"$ is the element in row $\"\"$ , column $\"\"$ .

Observe the matrix $\"\"$ ,

It has $\"\"$ rows and $\"\"$ columns.

Since $\"\"$ is the element in row $\"\"$ , column $\"\"$ the value of $\"\"$ is $\"\"$ .

$\"\"$

The matrix $\"\"$ element is $\"\"$ .