Trig Functions on a Unit Circle
This Applet Lets the student visualize the connection
between lengths of a figure connected from the unit circle and the
standard trig functions of an angle.
The point P can be dragged around the unit circle.
The lengths are all positive. The sign of the trig function can be derived from the quadrant of the line.
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There is a sample worksheet for this applet.
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Last Modified 9/4/2005 by Mike