1.

The angle between the lines \[{{x}^{2}}-xy-6{{y}^{2}}-7x+31y-18=0\] is  [Karnataka CET 2003]

A.   \[{{45}^{o}}\]     
B.   \[{{60}^{o}}\]
C.   \[{{90}^{o}}\]     
D.   \[{{30}^{o}}\]
Answer» B.   \[{{60}^{o}}\]


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