A) Coincident
B) Parallel
C) Mutually perpendicular
D) Imaginary
Correct Answer: D
Solution :
. \[{{x}^{2}}+{{y}^{2}}+xy=0\Rightarrow (x-\omega y)(x-{{\omega }^{2}}y)=0\] \[1,\ \omega ,\ {{\omega }^{2}}\] are cube roots of unity. Hence the lines are imaginary.You need to login to perform this action.
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