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yenthule8
2 năm trước
Cho (P): y = 1 phan 2 x binh phuong va d1 y;2mx-1-m (m#o0 a/ Với m = -2, vẽ (P) và (d 1 ) trên cùng mặt phẳng tọa độ: b/ Tìm m để đường thẳng (d 1 ), (d 2 ): y = 2x – 1, (d 3 ): y = x đồng qui.
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