$\"\"$

\

The expression is $\"\"$

\

$\"\"$ (Substitute $\"\"$ )

\

$\"\"$ (Substitute $\"\"$ )

\

$\"\"$

\

$\"\"$ (Multiply: $\"\"$ )

\

$\"\"$ (Multiply: $\"\"$ )

\

$\"\"$ (Substitute $\"\"$ )

\

$\"\"$

\

The value of the expression is $\"\"$

\