1.

The angle between the lines \[{{x}^{2}}+4xy+{{y}^{2}}=0\] is [Karnataka CET 2001; Pb. CET 2001]

A. \[{{60}^{o}}\]
B. \[{{15}^{o}}\]
C. \[{{30}^{o}}\]
D. \[{{45}^{o}}\]
Answer» B. \[{{15}^{o}}\]


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