Mathematics, 05.07.2019 04:30 cdradlet2001

The distance formula, d= √ (x2-x1)^2+(y2-y1)^2, is the key element in the proof of which of the following? a: the law of cosines b: cpctc c: the law of sines d: the triangle inequality theorem

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The distance formula, d= √ (x2-x1)^2+(y2-y1)^2, is the key element in the proof of which of the foll...