The equations of the tangents drawn from the point (0, 1) to the circle \[{{x}^{2}}+{{y}^{2}}-2x+4y=0\]are [Roorkee 1979]

The equations of the tangents drawn from the point (0, 1) to the circl

1.	The equations of the tangents drawn from the point (0, 1) to the circle \[{{x}^{2}}+{{y}^{2}}-2x+4y=0\]are [Roorkee 1979]
A.	\[2x-y+1=0,\,\,x+2y-2=0\]
B.	\[2x-y+1=0,\,\,x+2y+2=0\]
C.	\[2x-y-1=0,\,\,x+2y-2=0\]
D.	\[2x-y-1=0,\,\,x+2y+2=0\]
Answer» B. \[2x-y+1=0,\,\,x+2y+2=0\]

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The equations of the tangents drawn from the point (0, 1) to the circle \[{{x}^{2}}+{{y}^{2}}-2x+4y=0\]are [Roorkee 1979]

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