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Addition Formulas for Sines and Cosines

  Link Details for: Addition Formulas for Sines and Cosines
Link Title: Addition Formulas for Sines and Cosines Open in a new window
Link URL: http://www.pitt.edu/~wek3/sineadd/node1.html
Link Details: Describes how the Sine and Cosine Addition Formulas can be derived by using vectors and how these formulas can be remembered relatively easily.
Category: Top : Kids_and_Teens : School_Time : Math : Trigonometry
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Addition Formulas for Sines and Cosines