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Нужно найти сумму первых 12 членов арифметической прогрессии. Известно, что четвертый член равен 2.8, а 6 равен (-1.2).
Пожалуйста, помогите решить поставленную задачу! Буду каждому очень благодарен!-
Предмет:
Алгебра -
Автор:
frau fraummrv - 5 лет назад
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Ответы 2
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!!!!!!!!!!!!!!!!!!!!!!
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Автор:
huey - 5 лет назад
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Ответ в приложении - - - - - - - - - - - - - - - - - - - - - - - - - - —-----------------
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Автор:
sydneyyijq - 5 лет назад
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