If the circle `x^(2)+y^(2)+2gx+2fy+c=0` touches `x-` axis at `(x_(1),0)` then `x^(2)+2gx+c`=

If the circle x ^(2) + y^(2) + 2gx + 2fy+ c=0 touches X-axis, then

circle ax^(2)+ay^(2)+2gx+2fy+c=0 touches X -axis,if

If the circle x^(2)+y^(2)+2gx+2fy+c=0 touches y -axis then the condition is

The length of the tangent drawn from any point on the circle x^(2) + y^(2) + 2gx + 2fy + a =0 to the circle x^(2) + y^(2) + 2gx + 2fy + b = 0 is

If the circle x^(2) + y^(2) + 2gx + 2fy + x = 0(c gt 0) touches the y-axis then which one of the following is correct ?