Trong mặt phẳng Oxy cho các điểm A (1;0), B (-2;4),C (-1; 4 ), D (3;5) và đường thắng d:3x-y-5=0. Tìm điểm M trên d sao cho hai tam giác MAB, MCD có diện tích bằng nhau. giúp mình với mn ơi. mình cảm ơn nhiều ạ !

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