Students,

For difficult math questions, you can always go to http://mathforum.org/students/. You can either browse their question/answer archive, OR, you can write your specific questions to Dr. Math and he/the site will respond. This is a great site for the weekend when you can't ask me questions right away or if you are stuck on a homework question. Math Forum not only answers the question, but also provides an explanation so that you can understand and solve the next problem with the same concept. Good luck!