$\"\"$

\

The statement is $\"\"$ .

\

Consider $\"\"$ .

\

Apply Fundamental Theorem of Calculus: $\"\"$ .

\

$\"\"$

\

Apply derivative on each side with respect to $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

$\"\"$

\

$\"\"$ .

\

\