The line `x + 2y = a` intersects the circle `x^2 + y^2 = 4` at two distinct points `A and B` Another line `12x - 6y - 41 = 0` intersects the circle `x^2 + y^2 - 4x - 2y + 1 = 0` at two `C and D`. The value of 'a' for which the points `A,B,C and D` are concyclic -

The line y=mx+c intersects the circle x^(2)+y^(2)=r^(2) in two distinct points if

The line y=mx+c intersects the circle x^(2)+y^(2)=r^(2) in two distinct points if

The line x+2y+a=0 intersects the circle x^2+y^2-4=0 at two distinct points A and B. Another line 12x-6y-41=0 intersects the circle x^2+y^2-4x-2y+1=0 at two distincts points C and D. The value of 'a' so that the line x+2y+a=0 intersects the circle x^2+y^2-4=0 at two distinct points A and B is

The circle x^2 +y^2=4x+8y+ 5 intersects the line 3x-4y= m at two distinct points, if

The circle x^2+y^2 =4x+8y+5 intersects the line 3x-4y=m at two distinct points if :

The circles x^(2)+y^(2)=4x+8y+5 intersects the line 3x-4y = m at two distinct points of