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

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=

If 2x^2+lambdaxy+2y^2 +(lambda-4)x + 6y-5=0 represents a circle, then its radius is:

If one of the diameters of the curve x^(2)+y^(2)-4x-6y+9=0 is a chord of a circle with centre (1,1), the radius of this circle is

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

If one of the diameters of the circle x^(2)+y^(2)-2x-6y+6=0 is a chord to the circle with center (2,1) ,then the radius of the circle is

If one of the diameters of the circle x^(2)+y^(2)-2x-6y+6=0 is a chord to the circle with centre (2,1), then the radius of circle is: