CircleHard
Question
If a be the radius of a circle which touches x-axis at the origin, then its equation is-
Options
A.x2 + y2 − 3ax − a2 = 0
B.x2 + y2 + 3ax + a2 = 0
C.x2 + y2 ±2ay =0
D.x2 + y2 ± 3ay =8
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