The circle through (-2,5),(0,0) and intersecting the circle `x^(2)+y^(2)-4x+3y-1=0 `orthogonally is

The locus of the centres of circles passing through the origin and intersecting the fixed circle x^(2)+y^(2)-5x+3y-1=0 orthogonally is

The value of lambda for which the circle x^(2)+y^(2)+2lambdax+6y+1=0 intersects the circle x^(2)+y^(2)+4x+2y=0 orthogonally, is

Suppose a x+b y+c=0 , where a ,ba n dc are in A P be normal to a family of circles. The equation of the circle of the family intersecting the circle x^2+y^2-4x-4y-1=0 orthogonally is (a)x^2+y^2-2x+4y-3=0 (b)x^2+y^2-2x+4y+3=0 (c)x^2+y^2+2x+4y+3=0 (d) x^2+y^2+2x-4y+3=0

The circle with centre (2 3) and intersecting x^(2)+y^(2)-4x+2y-7=0 orthogonally has the radius

If the equation of the circle throught the points of intersection of the circles x^(2)+y^(2)-4x-6y-12=0 and x^(2)+y^(2)+"Ax"+"By"+C=0 and intersecting the circle x^(2)+y^(2)-2x-4=0 orthogonally is x^(2)+y^(2)+"Ax"+"By"+C=0 , then find teh value of (A+B+C) .

The radius of the circle touching the line x+y=4" at "(1, 3) and intersecting x^(2)+y^(2)=4 orthogonally is

The equation of a circle which touches the line x+y=5 at N(-2,7) and cuts the circle x^(2)+y^(2)+4x-6y+9=0 orthogonally,is