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 centres of the circles are (a, c) and (b, c) and their radical axis is y-axis. The radius of one of the circles is r. The radius of the other circle is

(iii)If two circles cut a third circle orthogonally; then the radical axis of two circle will pass through the center of the third circle .

A diameter of a circle is a chord that ..... the centre of the circle.

STATEMENT-1 : If n circles (n ge 3) , no two circles are non-centric and no three centre are collinear and number of radical centre is equal to number of radical axes, then n = 5. and STATEMENT-2 : If no three centres are collinear and no two circles are concentric, then number of radical centre is ""^(n)C_(3) and number of radical axs is ""^(n)C_(2).

You are given n ( ge 3) circles having different radical axes and radical centres. The value of 'n' for which the number of radical axes is equal to the number of radical centres is

If A, B, C are the centres of three circles touching mutually externally then the radical centre of the circles for triangle ABC is

A charge q coulomb moves in a circle at n revolution per second and the radius of the circle is r metre. Then magnetic feild at the centre of the circle is

A circle touches the line L and the circle C_(1) externally such that both the circles are on the same side of the line, then the locus of centre of the circle is :

If C_1 (1, 3) and C_2 (4, 3)are the centres of two circles whose radical axis is y-axis. If the radius of the 1st circle is 2sqrt2 units, then the radius of the second circle is

A circle touches both the coordinate axes and the line x-y=sqrt(2)a, a gt 0 , the coordinates of the centre of the circle cannot be