[" If "x^(2)+y^(2)-4x+6y+c=0" represent? "],[" a circle with radiug "6" unitg then "c" ."]

If x^(2)+y^2-4x+6y+c=0 represents a circle with radius 6 then c is

If x^(2)+y^(2)-4x+6y+c=0 represents a circle of radius 5 then c=

If x^(2) +y^(2) -4x + 6y + c = 0 represents a circle with radius 6 then find the value of c.

If 2x^(2)+by^(2)+4x-6y-1=0 represents a circle, then b=

Statement-1: The equation x^(2)-y^(2)-4x-4y=0 represents a circle with centre (2, 2) passing through the origin. Statement-2: The equation x^(2)+y^(2)+4x+6y+13=0 represents a point.

Statement-1: The equation x^(2)-y^(2)-4x-4y=0 represents a circle with centre (2, 2) passing through the origin. Statement-2: The equation x^(2)+y^(2)+4x+6y+13=0 represents a point.

If the equation 2x^2-2xy-y^2-6x+6y+c=0 represents a pair of lines then c=

If a circle C passing through (4,0) touches the circle x^(2)+y^(2)+4x-6y-12=0 externally at a point (1,-1), then the radius of the circle C is :