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Lap phương trình dường thàng di qua diêm A (3: - 2) vá song song với duơng tháng y - 2x - 1. 2Cho hàm sốy-3x+2 a) Goi A. B lần lượt là giao diểm cùa dồ thị hàm số trên với hai trục tọa do Ox, Oy. Xác định tọa độ cua A và B b) Tinh diễn tích tam giác OAB. c) Tinh só do góc tạo boi duường thang y 3 x +2 và trục Ox.
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