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Proof without Words: The Cosine of a Difference

The authors present a visualization of the formula for the cosine of the difference of angles.
Old Node ID: 
3440
MSC Codes: 
97G60
Author(s): 
Matthew Bode (Whatcom Community College) and Willam T. Webber (Whatcom Community College)
Publication Date: 
Sunday, February 21, 2010
Original Publication Source: 
Mathematics Magazine
Original Publication Date: 
December, 2002
Subject(s): 
Trigonometry
Geometric Proof
Geometry and Topology
Topic(s): 
Background
Calculus Functions
Flag for Digital Object Identifier: 
Publish Page: 
Furnished by JSTOR: 
Rating Count: 
80.00
Rating Sum: 
251.00
Rating Average: 
3.14
Applicable Course(s): 
3.1 Mainstream Calculus I
2.2 Trigonometry
Modify Date: 
Thursday, August 16, 2012
Average: 3.2 (80 votes)

Dummy View - NOT TO BE DELETED