\"\"

\

The matrix is \"\".

\

Definition of inverse matrix :

\

If \"\" is an \"\" then \"\", where \"\".

\

\"\"\"\"

\

Here \"\".

\

\"\".

\

Because \"\", then \"\" is invertiable.

\

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

\

\"\"

\

The inverse matrix is \"\"

\

\"\"

\

The inverse matrix is \"\"