\"\"

\

The matrices are \"\", \"\", \"\" and \"\".

\

Evalulate the expression is \"\".

\

Find \"\":

\

\"\" and \"\"

\

\"\"

\

\"\"

\

\"\"

\

Substitute \"\" in \"\" to find matrix \"\" value.

\

\"\"

\

\"\"

\

\"\".

\

\"\"

\

The value of \"\" is \"\".