Let ABC be a triangle. Let A be the point (1,2) and y =x is the line perpendicular to AB and x – 2y = 6 is the angle bisector of angle C. If the equation of BC is given by ax + by – 5 = 0, then the value of a + b is
Let ABC be a triangle. Let A be the point (1,2) and y =x is the line perpendicular to AB and x – 2y = 6 is the angle bisector of angle C. If the equation of BC is given by ax + by – 5 = 0, then the value of a + b is










