Dissection Proof of the Addition Formula for Sines
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This Demonstration shows a dissection proof of the addition formula for sines, .
Contributed by: Izidor Hafner (March 2011)
Open content licensed under CC BY-NC-SA
For more information, see http://www.cs.purdue.edu/homes/gnf/book/Booknews/ch4.html# DPA.
"Dissection Proof of the Addition Formula for Sines"
Wolfram Demonstrations Project
Published: March 7 2011