1.

The combined equation of the bisectors of the angle between the lines represented by \[({{x}^{2}}+{{y}^{2}})\sqrt{3}=\] \[4xy\] is [MP PET 1992]

A.   \[{{y}^{2}}-{{x}^{2}}=0\] 
B.   \[xy=0\]
C.   \[{{x}^{2}}+{{y}^{2}}=2xy\]   
D.   \[\frac{{{x}^{2}}-{{y}^{2}}}{\sqrt{3}}=\frac{xy}{2}\]
Answer» B.   \[xy=0\]


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