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найдите знач. вражения косинус в квадрате альфа минус синус в квадрате альфа, если тангенс альфа равен двум. спасибо зарание
Ответы 3
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есть несколько вариантов ответов это: 1,-1, -1\3, -3\5
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Автор:
adenx0kb - 6 лет назад
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-3/5
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Автор:
monkey58 - 6 лет назад
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надеюсь, что правильно..
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Автор:
dangeloritter - 6 лет назад
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George Brown
o.henry was a famous american humorist and an author of many short stories. he wrote stories with unpredictable endings and always asked his friends to let him know if something interesting happened to them. he had a friend,whose name was tripp. he was a young man, but he looked forty, because he naver washed or shaved. he often wanted o. henry to give him money, so he could spend it on whisky.
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