$\"\"$

\

The curve is $\"\"$ .

\

Observe the graph, the interval of $\"\"$ is $\"\"$ .

\

Definition of the arc length:

\

If the curve $\"\"$ , $\"\"$ , then the length of the curve is defined as,

\

$\"\"$ .

\

Find $\"\"$ .

\

Consider $\"\"$ .

\

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

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

$\"\"$

\

Arc length of the curve $\"\"$ :

\

Substitute $\"\"$ and $\"\"$ $\"\"$ in $\"\"$ .

\

$\"\"$

\

Consider $\"\"$ .

\

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

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

Substitute $\"\"$ and $\"\"$ in integral.

\

$\"\"$

\

$\"\"$

\

Substitute $\"\"$ .

\

$\"\"$

\

$\"\"$ units.

\

$\"\"$

\

The arc length of the curve $\"\"$ is $\"\"$ units.