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Relate Sin(a + b) and Sin(a-b)
Author:
Auston B Cron
Topic:
Cosine
,
Sine
This demonstration uses area calculations.
GeoGebra
Daniel Mentrard, Créé avec GeoGebra Translation to English by A. B. Cron [url]
http://dmentrard.free.fr/GEOGEBRA/index.htm[\url]
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