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Definition of Law of cosines
1. Noun. (trigonometry) A statement that relates the lengths of the sides of a triangle to the cosine of one of its angles. ¹
¹ Source: wiktionary.com
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1. Noun. (trigonometry) A statement that relates the lengths of the sides of a triangle to the cosine of one of its angles. ¹
¹ Source: wiktionary.com