$\"\"$

\

The integral expression is $\"\"$ .

\

Consider $\"\"$ .

\

Assume $\"\"$ .

\

Apply derivative on each side.

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

Change in integral limits:

\

Lower limit: If $\"\"$ , then $\"\"$ .

\

Upper limit: If $\"\"$ , then $\"\"$ .

\

If $\"\"$ , then $\"\"$ .

\

Substitute $\"\"$ , $\"\"$ and change of limits in $\"\"$ .

\

$\"\"$

\

Integral formula: $\"\"$ .

\

$\"\"$

\

Trigonometric property: $\"\"$ .

\

$\"\"$

\

Replace $\"\"$ with $\"\"$ .

\

$\"\"$ .

\

$\"\"$

\

$\"\"$ .