The distance between the parallel lines \[9{{x}^{2}}-6xy+{{y}^{2}}+18x-6y+8=0\] is [EAMCET 1994]

The distance between the parallel lines \[9{{x}^{2}}-6xy+{{y}^{2}}+18x

1.	The distance between the parallel lines \[9{{x}^{2}}-6xy+{{y}^{2}}+18x-6y+8=0\] is [EAMCET 1994]
A.	\[1/\sqrt{10}\]
B.	\[2/\sqrt{10}\]
C.	\[4/\sqrt{10}\]
D.	\[\sqrt{10}\]
Answer» C. \[4/\sqrt{10}\]

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The distance between the parallel lines \[9{{x}^{2}}-6xy+{{y}^{2}}+18x-6y+8=0\] is [EAMCET 1994]

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