The radius of the circle `x^(2) + y^(2) + x + c = 0` passing through the origin is

The diameter of the circle concentric to the circle x^(2) + y^(2) + 4x - 2y = 20 and passes through the origin is -

The locus of midpoints of chords of the circle x^(2)+y^(2)-2px=0 passing through the origin is

Equation of the diameter of the circle x^(2) +y^(2) - 2x + 4y = 0 which passes through the origin is

The equation of the diameter of the circle x^(2) + y^(2) - 6x + 2y = 0 which passes through origin is

Find the locus of the mid points of the chords of the circle x^2 + y^2 -2x -6y - 10 = 0 which pass through the origin.

The equation of a diameter of circle x ^(2) + y^(2)-6x + 2y =0, passing through origin is

The equation of a diameter of circle x ^(2) + y^(2)-6x + 2y =0, passing through origin is

Equation of the diameter of the circle x^(2)+y^(2)-2x+4y=0 which passes through the origin is x+2y=0 b.x-2y=0 c.2x+y=0 d.2x-y=0