Bibliography

http://teacher2.smithtown.k12.ny.us/mrsfisher/images/UnitCircle.gif. 3-1-11

Anyone."Unit Circle".Wikipedia. Wikimedia Foundation, Inc., 2-24-11/ 3-8-11

Other Helpful Websites

*http://www.coolmath.com/precalculus-review-calculus-intro/precalculus-trigonometry/28-the-unit-circle-01.htm-problems
*http://earthmath.kennesaw.edu/main_site/RSI_studies/butterflies.htm-help memorizing
*http://www.strategyplanet.com/homeworld/mma/primer/hwprimer/055Tip5P.htm-help memorizing
*http://www.embeddedmath.com/downloads/index.php-a printable unit circle
*http://hotmath.com/help/gt/genericalg2/section_10_4.html-problems
*http://www.themathpage.com/atrig/unit-circle.htm-examples