№18 ЕГЭ математика профиль (параметр)
При каких значениях параметра а уравнение (𝟑𝒂−𝟏) 𝒙^𝟐 𝟐𝒂𝒙 𝟑𝒂−𝟐=𝟎
имеет два различных действительных корня?
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