TS EAMCET · Maths · Circle
\(\mathrm{O}(0,0)\) and \(\mathrm{A}(1,0)\) are centres of two unit circles \(\mathrm{C}_1\) and \(\mathrm{C}_2\) respectively. \(\mathrm{C}_3\) is also a unit circle having its centre above \(\mathrm{X}\)-axis and passing through \(\mathrm{O}\) and \(\mathrm{A}\). The equation of the common tangent to \(\mathrm{C}_1\) and \(\mathrm{C}_3\) which does not intersect the circle \(\mathrm{C}_2\) is
- A \(\sqrt{3} x-y+2=0\)
- B \(x+\sqrt{3} y+2=0\)
- C \(\sqrt{3} x-y-2=0\)
- D \(x+\sqrt{3} y-2=0\)
Answer & Solution
Correct Answer
(A) \(\sqrt{3} x-y+2=0\)
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