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
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