The length of common chord of the circles
`x^2 + y^2 - 6x - 4y + 13 - c^2 = 0` and
` x^2 + y^2 -4x - 6y + 13 -c^2 = 0` is

Show that the common chord of the circle cles x^2 + y^2 - 6x - 4y + 9 = 0 and x^2 + y^2 - 8x - 6y + 23 = 0 is the diameter of the second circle and also find its length.

Find the equation and length of the common chord of the following circles. x^2 + y^2 - 5x - 6y + 4 = 0, x^2 + y^2 - 2x -2 = 0

Find the equation to the common chord of the two circles x^(2) + y^(2) - 4x + 6y - 36 = 0 and x^(2) + y^(2) - 5x + 8y - 43 = 0 .

The equation of the circle whose diameter is the common chord of the circles x^(2) + y^(2) + 2x+ 2y + 1= 0 and x^(2) + y^(2) + 4x+6y +6 = 0 is

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)-2x-1=0 and x^(2)+y^(2)+4y-1=0 , is

The length of the common chord of the circles (x-6)^2+(y-4)^2=4, (x-4)^2+(y-6)^2=4 is

The length of the common chord of the circles (x-6)^2+(y-4)^2=4, (x-4)^2+(y-6)^2=4 is