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Law of Cosines

Revision as of 20:21, 21 June 2006 by Rrusczyk (talk | contribs) (edited TeX to include \cos function)

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The Law of Cosines is a formula used in finding lengths and angles of a triangle. For sides a, b, and c with opposite angles A, B, and C respectively: $c^2 = a^2 + b^2 - 2ab\cos C$

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