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manhmanhla724
2 năm trước
Giúp mk bài này với !!! Cho hàm số y=x^3-3x^2 a, tìm m để phương trình -x^3 +3x^2 +m-1=0 có 3 nghiệm phân biệt b, tìm m để (d) y=mx +1 cắt (C) tại 1 điểm
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