Question

If a circle passes through the points of intersection of the coordinate axes with the lines λx - y + 1 = 0 and x - 2y + 3 = 0, then the value of λ is ....

Answer 1

Since, the point of intersection of the coordinate axes with the line λx - y + 1 = 0 and x - 2y + 3 = 0 form the circle.

represents a circle, if coefficient of x² = coefficient of y² and coefficient of xy = 0

Comments

Thanks