$\"\"$

\

The matrix equation is $\"\"$ .

\

Rewrite the matrix is

\

$\"\"$

\

Inverse of a $\"\"$ matrix : $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

$\"\"$

\

$\"\"$ .