A. x-y=8

B. x-y=2

C. x-y+2=0

D. x-y+8=0

The equation of the circle having a radius 2 and passing through the limiting points of the coaxal system x^{2}+y^{2}-6-2λ(x+y-4)=0 is

If the lines 2x-y+11=0, x-2y+3=0 intersecting the coordinate axes in four concyclic points then the centre of the circle passing through these four points is

The equation of the circle which touch the y-axis at a distance 4 from the origin and make an intercept 6 on the x-axis is

The circle on the chord x cos α+ y sin α=p of the circle x^{2}+y^{2}=r^{2} as diameter is

The internal centre of similitude of the two circles x^{2}+y^{2}+6x-2y+1=0, x^{2}+y^{2}-2x-6y+9=0 is