Trig Graphs

You can use this applet to drag point C around the circle, and will be able to see how the points P and Q move.  If you right click on P or Q and "Show Trace" it will leave a path behind.

TrigTrace This is a Java Applet created using GeoGebra from www.geogebra.org - it looks like you don't have Java installed, please go to www.java.com C Smy, 23 January 2013, Created with GeoGebra