Given that

\

$\"\"$

\

Asked to find the exact value of

\

$\"\"$

\

Sustitute the x value as $\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Therefore the exact value of the required function is 1.42777