The least length of chord passing through (2,1) of the circle `x^(2)+y^(2)-2x-4y-13=0` is

Equation of chord of minimum length passing through (1,2) of Circle x^(2)+y^(2)-4x-2y-4=0 is ax+by+c=0 then a+b+c=

Find the equation of the circle passing through the centre of the circle x^(2)+y^(2)+8x+10y-7=0 and concentric with the circle x^(2)+y^(2)-4x-6y=0

Find the equation of the circle passing through (-2,14) and concentric with the circle x^(2)+y^(2)-6x-4y-12=0

The chord of contact of (2,1) w.r.t to the circle x^(2)+y^(2)+4x+4y+1=0 is

Length of the common chord of the parabola y^(2)=8x and the circle x^(2)+y^(2)-2x-4y=0 is :

The midpoint of the chord y=x-1 of the circle x^(2)+y^(2)-2x+2y-2=0 is

Equation of the circle concentric with the circle x^(2) + y^(2) + 8x + 10 y - 7 = 0 , and passing through the centre of the circle x^(2) + y^(2) - 4x - 6y = 0 ,is

Find the length of the chord cut-off by y=2x+1 from the circle x^(2)+y^(2)=2

Length of the chord on the line 4x-3y+10=0 cut-off by the circle x^(2)+y^(2)-2x+4y-20=0 is