CircleHard
Question
For the circles S1 ≡ x2 + y2 - 4x - 6y - 12 = 0 and S2 ≡ x2 + y2 + 6x + 4y - 12 = 0 and the line L ≡ x + y = 0
Options
A.L is common tangent of S1 and S2
B.L is common chord of S1 and S2
C.L is radical axis of S1 and S2
D.L is perpendicular to the line joining the centre of S1 & S2
More Circle Questions
The equation of the common tangent touching the circle (x -3)2 + y2 = 9 and the parabola y2 = 4x above the x-axis is...A circle C1 of unit radius lies in the first quadrant and touches both the co-ordinate axes. The radius of the circle wh...The tangent and normal at the point P (18, 12) of the parabola y2 = 8x intersects the x-axis at the points A and B respe...Two lines through (2, 3) from which the circle x2 + y2 = 25 intercepts chords of length 8 units have equations...If the circle x2 + y2 = a2 intersects the hyperbola xy = c2 in four points P(x1, y1), Q(x2, y2), R(x3, y3), S(x4, y4), t...