Find the length of the common chord of the circle `x^2+y^2+2hx+a^2=0` and `x^2+y^2-2ky-a^2=0`.

Find the length of the common chord of the circles x^2+y^2+2x+6y=0 and x^2+y^2-4x-2y-6=0

The length of the common chord of the circles x^(2)+y^(2)-2x-1=0 and x^(2)+y^(2)+4y-1=0 , is

The length of the common chord of the circles x^2+y^2+ax+by+c=0 and x^2+y^2+bx+ay+c=0 is

The length of the common chord of the two circles x^2+y^2-4y=0 and x^2+y^2-8x-4y+11=0 is

The length of the common chord of x^2+y^2+2hx=0 , x^2+y^2-2ky=0 is

If length of the common chord of the circles x^2 + y^2 + 2x + 3y + 1 = 0 and x^2 + y^2 + 4x + 3y + 2 = 0 then the value of [a]. (where [ - ] denotes greatest integer function)

The equation of the circle described on the common chord of the circles x^2 +y^2- 4x +5=0 and x^2 + y^2 + 8y + 7 = 0 as a diameter, is

Find the equation and length of the common chord of the two circles S=x^2+y^2+3x+5y+4=0 and S=x^2+y^2+5x+3y+4=0

The equation of the circle described on the common chord of the circles x^(2)+y^(2)+2x=0 and x^(2)+y^(2)+2y=0 as diameter, is

Find the length of the chord cut-off by y=2x+1 from the circle x^2+y^2=2