\"\"

\

\

The function is \"\", \"\".

\

Find the critical numbers by applying derivative.

\

\"\"

\

Equate it to zero.

\

\"\"

\

For \"\". 

\

\"\"

\

\"\" is not in the \"\".

\

For \"\".

\

\"\"

\

Therefore the critical numbers are \"\" and \"\".

\

Test intervals are \"\", \"\" and \"\".

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
Test intervals \

Test value

\ 		\

sign of \"\"

\ 		conclusion
\"\"\"\" \

\"\"

\ 		Increasing
\"\"\"\" \

\"\"

\ 		Decreasing
\"\"\"\" \

\"\"

\ 		Increasing
\

So the function \"\" is decreasing on the interval \"\".

\

The function \"\" is increasing on the intervals \"\" and \"\".

\

\"\"

\

The function \"\" is decreasing on the interval \"\".

\

The function \"\" is increasing on the intervals \"\" and \"\".