Trigonometric functions

The applets are started by clicking the red buttons.

The Definition of trig functions is illustrated in a right-angled triangle. Geometry and numerical values are related, and it is emphasized that the trig functions do not change under rescalings of the triangle's size. The applet is started from the red button in its own window.

Suggestion for the classroom to this applet:
 - Trigonometry - the right-angled triangle (by Karinna Huber, Word document)

Also see the learning units under Trigonometry and under Functions 2

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