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Proof without Words: The Sine of a Sum
by Edgar A Ramos (Max-Planck-Institut für Informatik) and Volker Priebe (Max-Planck-Institut für Informatik)This article originally appeared in:
Subject classification(s): Discrete Mathematics | Combinatorics
Applicable Course(s): 2.2 Trigonometry
A visual proof is given for the sum formula for sines.
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