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- Addition Formulas for Sines and Cosines
Describes how the Sine and Cosine Addition Formulas can be derived by using vectors and how these formulas can be remembered relatively easily.
http://www.pitt.edu/~wek3/sineadd/index.html
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S.O.S. Math - Trigonometry
Covers measuring degrees, equations, and formulas. Includes illustrations and related links.
http://www.sosmath.com/trig/trig.html
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An Introduction to Trigonometry
Definitions, basics, functions, and other concepts necessary to understand basic trigonometry.
http://www.ping.be/math/gonio.htm
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Dave's Short Trig course
Covers basic definitions and concepts in beginning trigonometry.
http://aleph0.clarku.edu/~djoyce/java/trig/
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Trigonometry
A brief overview of trigonometric terms and concepts.
http://library.thinkquest.org/10030/trigcon.htm
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