If the circle `x^2+y^2+2a_1x+c=0` lies completely inside the circle `x^2+y^2+2a_2x+c=0` then

If the circle x^(2)+y^(2)+2a_(1)x+c=0 lies completely inside the circle x^(2)+y^(2)+2a_(2)x+c=0 then

If the origin lies inside the circle x^(2) + y^(2) + 2gx + 2fy + c = 0 , then

If the circle x^(2) + y^(2) = 9 touches the circle x^(2) + y^(2) + 6y + c = 0 internally, then c is equal to

If the circle x^(2)+y^(2)+2gx+2fy+c=0 bisects the circumference of the circle x^(2)+y^(2)+2g'x+2f'y+c'=0 then prove that 2g'(g-g')+2f'(f-f')=c-c'

If the circle x^(2)+y^(2)+4x+22y+c=0 bisects the circumference of the circle x^(2)+y^(2)-2x+8y-d=0 then c+d

If the circle x^(2)+y^(2)+4x+22y+c=0 bisects the circumference of the circle x^(2)+y^(2)-2x+8y-d=0, then (c+d) is equal to

If the circle x^(2)+y^(2)+2gx+2fy+c=0 bisects the circumference of the circles x^(2)+y^(2)=6,x^(2)+y^(2)-6x-4y+10=0 and x^(2)+y^(2)+2x+2y-2=0