A. (1, 0)
B. (2, -3)
C. (5, 2)
D. (-1, 0)
The equation of the tangents to a circle x2+y2-4x-6y-12=0 and parallel to 4x-3y=1 are
Equation x2+2ax-b2=0 has real roots α, β and equation x2+2px-q2=0 has real roots γ, δ. If circle C is drawn with the points (α, γ), (β, δ) as extremities of a diameter, then the equation of C is
The equation of the circle passing through (0, 0) and cutting orthogonally the circles x2+y2+6x-15=0, x2+y2-8x+10=0 is
The equation of the circle passing through the points of intersection of the circle x2+y2-2x+4y-20=0, the line 4x-3y-10=0 and the point (3, 1) is
The equation of the circle touching the line 3x-4y-15=0 and belonging to the coaxal system having limiting points (2, 0), (-2, 0) is
The locus of the centre of the circles which touches externally the circle x2+y2-6x-6y+14=0 and also touches the y-axis is given byt the equation
The parametric equations of circle (x-3)2+(y-2)2=100 are
The point (-1, 0) lies on the circle x2+y2-4x+8y+k=0. The radius of the circle
The lengths of the chords of the circle x2+y2-2x-6y-15=0 which make an angle of 600 at (1, 3) and the locus of the midpoints of all such chords are
The shortest distance from (-2, 14) to the circles x2+y2-6x-4y-12=0 is