CircleEasy
Question
The equation of the radical axis of circles 7x2 + 7y2 − 7x + 14 y + 18 = 0 & 4x2 + 4y2 − 7x + 8y + 20 = 0 is -
Options
A.21 x − 68 = 0
B.3x2 + 3y2 + 6y − 6 = 0
C.3y − 1 = 0
D.None of these
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