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ngocyen123
2 năm trước
Cho đường thẳng y = x + m + 1 cắt 2 trục Ox Oy tại 2 điểm A và B a) tam giác OAB là tam giác gì b) tìm m để diện tích tam giác OAB = 9,2 c) Tìm m để đường cao hạ từ A của tam giác AOB có chiều dài bằng 2 căn 2
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