What is the equation of the circle that passes through the origin, has its center on the line and cuts the circle orthogonally?
Find the sum of all possible values of such that the two points and lie on the circle with radius .
If the line cuts the circle into two equal parts, then what is the value of
If the circle passes through three points what is the value of
If the circle passes through the origin and has the same center as the circle what is the value of