A. (3, 6)
B. (-3, 6)
C. (-6, 3)
D. (6, 3)
A tangent to the circle x2+y2=4 meets the coordinate axes at P and Q. The locus of mindpoint of PQ is
The condition that the circles (x-α)2+(y-β)2=r2, (x-β)2+(y-α)2=r2 may touch each other is
The length of the chord of contact of (-2, 3) with respect to the circle x2+y2-2x+4y+1=0 is
From the origin chords are drawn to x2+y2-2y=0. The locus of the middle points of these chords is
Consider a family of circles which are passing through the point (-1, 1) and are tangent to x-axis. If (h, k) are the co-ordinates of the centre of the circles, then the set of values of K is given by the interval
The locus of the point of intersection of two tangents drawn to the circle x2+y2=a2 which make a constant angle α to each other is
The straight line x-2y+1=0intersects the line circle x2+y2=25 in points P and Q, the coordinates of the point of intersection of tangents drawn at P and Q to the circle is
If the tangents at (3, -4) to the circle x2+y2-4x+2y-5=0 w.r.t the circle x2+y2+16x+2y+10=0 in A and B, then the midpoint of AB is
The polar of (x1, y1) w.r.t the circle x2+y2=a2 meets the coordinate axes in A and B. The area of ΔOAB is
The equations of the tangents drawn from the origin x2+y2+2gx+2fy+f2=0 is