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Algebra 21 Online
OpenStudy (anonymous):

law of cosine

OpenStudy (isaiah.feynman):

Should be in your text book..

OpenStudy (anonymous):

\[ c^2 = a^2+b^2-ab\cos(C) \]Or something like that.

OpenStudy (anonymous):

ya i know im just kidding hahahahahahahahahahahaahahahah

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