1.

At which point on y-axis the line \[x=0\]is a tangent to circle \[{{x}^{2}}+{{y}^{2}}-2x-6y+9=0\]                                  [RPET 1984]

A. (0, 1)
B. (0, 2)
C. (0, 3)
D. (0, 4)
Answer» D. (0, 4)


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