Angle between the lines represented by the equation \[{{x}^{2}}+2xy\se

1.	Angle between the lines represented by the equation \[{{x}^{2}}+2xy\sec \theta +{{y}^{2}}=0\] is
A.	\[\theta \]
B.	\[2\theta \]
C.	\[\frac{\theta }{2}\]
D.	None of these
Answer» B. \[2\theta \]

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Angle between the lines represented by the equation \[{{x}^{2}}+2xy\sec \theta +{{y}^{2}}=0\] is

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