1.

The angle between the pair of lines represented by \[2{{x}^{2}}-7xy+3{{y}^{2}}=0\], is            [Kurukshetra CEE 2002]

A.            \[{{60}^{o}}\] 
B.            \[{{45}^{o}}\]
C.            \[{{\tan }^{-1}}\left( \frac{7}{6} \right)\]          
D.            \[{{30}^{o}}\]
Answer» B.            \[{{45}^{o}}\]


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