" The circles "x^(2)+y^(2)-12x+8y+48=0,x^(2)+y^(2)-4x+2y-4=0" are "

The external centre of similitude of the circle x^(2)+y^(2)-12x+8y+48=0 and x^(2)+y^(2)-4x+2y-4=0 divides the segment joining centres in the ratio

The external centre of similitude of the circle x^(2)+y^(2)-12x+8y+48=0 and x^(2)+y^(2)-4x+2y-4=0 divides the segment joining centres in the ratio.

The radical centre of the circles x^(2) + y^(2)- 2x + 6y = 0 , x^(2) + y^(2) - 4x - 2y + 6 = 0 , x^(2) + y^(2) - 12x + 12y + 30 = 0 is

. The centres of the circles x^(2)+y^(2)-6x-8y-7=0 and x^(2)+y^(2)-4x-10y-3=0 are the ends of the diameter of the circle

The equation of the tangent at the point (0, 3) on the circle which cuts the circles x^(2)+y^(2)-2x+6y=0 , x^(2)+y^(2)-4x-2y+6=0 and x^(2)+y^(2)-12x+2y+3=0 orthogonally is

The two circles x^(2)+y^(2)-2x-3=0 and x^(2)+y^(2)-4x-6y-8=0 are such that

The two circles x^(2)+y^(2)-2x-3=0 and x^(2)+y^(2)-4x-6y-8=0 are such that