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Questions  

The combined equation of angular bisector of lines represented by the equation xy=0 is

a
xy=0
b
x+y=0
c
x-y=0
d
x2−y2=0

detailed solution

Correct option is D

The given equation is xy=0 , it is the combined equation of coordinate axesThe angular bisectors of coordinate axes are  x+y=0,x−y=0Therefore, the combined equation is product of two equations  x2−y2=0

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