The combined equation of bisectors of angles between coordinate axes,

1.	The combined equation of bisectors of angles between coordinate axes, is
A.	\[{{x}^{2}}+{{y}^{2}}=0\]
B.	\[{{x}^{2}}-{{y}^{2}}=0\]
C.	\[xy=0\]
D.	\[x+y=0\]
Answer» C. \[xy=0\]

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The combined equation of bisectors of angles between coordinate axes, is

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