http://www.hippocampus.org/HippoCampus/Calculus & Advanced Math?loadLeftClass=Course&loadLeftId=136&loadTopicId=9269
Show me at least one completed problem from Stewart #21, 23-25.
This is worth 5 points. If it is not done at the very beginning of class, it's a zero.
Check your final answer. If you make a mistake, you must fix it, and show me where you went wrong and where you found your mistake.