(i)The radical axis is perpendicular to the line joining the centres of the given circles.

Find the radical axis of the circles x^2+y^2-6x+8y-12=0 and x^2+y^2+6x-8y+12=0 . Prove that the radical axis is perpendicular to the line joining the centers of the two circles.

Prove that the line joining the centres of two intersecting circles is the perpendicular bisector of the line joining the points of intersection.

Prove that the line joining the centres of two intersecting circles is the perpendicular bisector of the line joining the points of intersectíon.

ln n(n>=3) circles the centres of no three circles are collinear. If the number of the radical axes of the circles is equal to the number of the radical centres of the circles then n^(2)-4n-5=

The radical axis of the two circleS and the line of centres of those circleS are

The radical axis of two touching circles divides the line segment joining the centre of circles in the ratio of their

A circle touches a given straight line and cuts off a constant length 2d from another straight line perpendicular to the first straight line. The locus of the centre of the circle, is

A circle touches a given straight line and cuts off a constant length 2d from another straight line perpendicular to the first straight line. The locus of the centre of the circle, is