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Tool: Cosine Box
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Description: Applet that provides a visualization of the cosine function. Also can be used as a cosine calculator (degrees). Includes short activity in solving cos(x) = k equations.
Technology Type: Java Applet 
Author: International Education Software (IES)
Language: English 
Cost: Does not require payment for use

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Courses: Trigonometry sin, cos and tan, The Unit Circle, Finding Angles

Comment:not very good at all. i like to look at a problem not try and read about it