$\"\"$

\

The function is $\"\"$ .

\

Substitute the value of $\"\"$ in above function.

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

The expression is $\"\"$ .

\

Substitute the value of $\"\"$ in above expression.

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

The value of $\"\"$ .