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Tool: Formula for sin(A+B)
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Go to: http://www.ies-math.com/math/java/trig/kahote/kahote.html (opens a new window)
Description: This applet teaches students geometrically that sin(A+B) = sin(A)cos(B) + cos(A)sin(B). Students can change the values of A and B.
Technology Type: Java Applet 
Author: International Education Software (IES)
Language: English 
Cost: Does not require payment for use

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Courses: Trigonometry The Unit Circle, Sum and Difference