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Homka2284
@Homka2284
August 2022
1
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Даны вершины треугольника ABC: A(2; 9; -2) b( 2; -9; 0) C( 8; -5; 2 ). Найти cos угла ABC.
P.S У меня в ответе получилось 17 * корень из 287 / 574.
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IrkaShevko
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Да, ответ такой же
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Verified answer
Да, ответ такой же