The centre of the circle passing through (0, 0) and (1, 0) and touching the circle $${x^2}\, + \,{y^2} = 9$$ is :
- A$$\left( {{1 \over 2},\,{1 \over 2}} \right)$$
- B$$\left( {{1 \over 2},\, - \,\sqrt 2 } \right)$$
- C$$\left( {{3 \over 2},\,{1 \over 2}} \right)$$
- D$$\left( {{1 \over 2},\,{3 \over 2}} \right)$$
✓ Correct answer: B
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