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Wednesday, December 21, 2011
Sine Difference Formula and Cosine Addition Formula
This applet shows a proof of the difference formula for sine,
and a proof of the addition formula for cosine,
using the formula
.
This is a Java Applet created using GeoGebra from www.geogebra.org - it looks like you don't have Java installed, please go to www.java.com
Reference:
Proof of the Difference Formula for Sine and of the Addition Formula for Cosine
" from
the Wolfram Demonstrations Project
http://demonstrations.wolfram.com/ProofOfTheDifferenceFormulaForSineAndOfTheAdditionFormulaFor/
Contributed by:
Izidor Hafner
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