The curve is\"\" from x=0 to x=3.

\

Apply derivative each side.Apply formula : \"\".

\

\"\"

\

Apply formula : \"\".

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

The length is(l)= \"\".

\

\"\".

\

\"\"

\

Apply formula : \"\".

\

\"\"

\

\"\"

\

\"\"

\

\"\" \ \

\

\"\"

\

\"\".