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Maibo2111
2 năm trước
Trong mặt phẳng Oxy cho đường thẳng (d) y=mx+4 (M ≠ 0 ) a)Gọi A là giao điểm của đường thẳng (d) và trục Oy.Tìm tọa độ giao điểm của A b)tìm tất cả giá trị của M để đường thẳng (d)cắt trục Ox tại điểm B sao cho tam giác OAB là tam giác cân
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