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PDF-Proof of the law of sines and the law of cosines PDF document

A B C D b a h x c x FromtherighttriangleADCwededucex2h2b21andcosAx bxbcosA2FromtherighttriangleBDCwededucecx2h2a2a2c22cxx2h23Substitutingequations1and2into3wegeta2

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Proof of the law of sines and the law of cosines: Transcript

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