A. Tangent for both

B. diameter for both

C. tangent to the first and diameter of the second

D. diameter of first and tangent to second

The equation of the circle passing through the point (1, -2) and having its centre on the line 2x-y-14=0 and touching the line4x+3y-23=0 is

The equation to the pair of tangents drawn from (3, 2) to the circle x^{2}+y^{2}-6x+4y-2=0 is

The equation of one tangent to the circle with Centre(2,-1) from the origin is 3x + y = 0, then the equation of the other tangent through the origin is

The equation to the circle which is such that the lengths of the tangents to it from the points (1,0), (2,0) and (3,2)are 1,√7, √2, respectively is

The locus of the centre of the circles which touché both the circles x^{2}+y^{2}=a^{2} and x^{2}+y^{2}=4ax externally has the equation