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Пожалуйста!!! Решите неравенство: (5)/(x-7) >2
Только решайте не в строчку ;)-
Предмет:
Алгебра -
Автор:
bentleysanders - 6 лет назад
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Ответы 1
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5/(х-7)>2ОДЗ х не равен 75/(х-7)-2>0(5-2(х-7))/(х-7)>0(5-2х+14)/(х-7)>0(-2х+19)/(х-7)>0{-2х+19>0. {х-7>0. 2х<19. х>7. х<9.5. х>7х е (7; 9.5)или {2х+19<0. {х-7<0. 2х>19х<7х>9.5 и х <7пересечений нет Ответ х принадлежит интервалу от (7 ; 9.5)
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Автор:
rickycswc - 6 лет назад
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0
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