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Mathematics, 05.10.2019 21:20, zanaplen27
Use vectors to decide whether the triangle with vertices p(1,-3,-2), q(2,0,4), r(6,-2,-5) is right-angled.
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Use vectors to decide whether the triangle with vertices p(1,-3,-2), q(2,0,4), r(6,-2,-5) is right-a...
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