$\"\"$

The function is $\"\"$ .

To find the value of function f(2)substitute value $\"\"$ in above function.

$\"\"$

$\"\"$ .

$\"\"$

The function is $\"\"$ .

To find the value of function $\"\"$ substitute value $\"\"$ in above function.

$\"\"$

$\"\"$ .

$\"\"$

Substitute values of $\"\"$ in the expression $\"\"$ .

$\"\"$ . $\"\"$

The value of $\"\"$ .