A. 1
B. 2
C. -1
D. -2
If the circles x2+y2-4x+6y+8=0, x2+y2-10x-6y+14=0 touch each other , then the point of contact is
If the lines x+2y+k=0, x+y-3=0 are conjugate w.r.t the circle x2+yu2=9 then k=
If the length of the tangent from (2, 3) to circle x2+y2+6x+2ky-6=0 is equal to 7. Then k=
Let A and B be any two points on each of the circles x2+y2-8x-8y+28=0 and x2+y2-2x-3=0 respectively. If d is the distance between A and B then the set of all possible values of d is
The length and the midpoint of the chord 2x+y-5=0 w.r.t the circle x2+y2=9 is
For the circle x2+y2-2x-4y-4=0 the lines 2x+3y-1=0, 2x+y+5=0 are
If a tangent drawn from the point (4, 0) to the circle x2+y2=8 touches it at a point in the first quadrant, then the coordinates of another point B on the circle such that AB=4 are
For the circle x2+y2-6x-6y+5=0 the lines 3x+y-2=0, x+7y-11=0 are
The condition that the circles x2+y2+2ax+c=0, x2+y2+2by+c=0 may touch each other is
If the circles described on the line joining the points (0, 1) and (α, β) as diameter cuts the axis of x in points whose abscissa are the roots of the equation x2-5x+3=0, then (α, β)=