A) Parallel to each other
B) Perpendicular to each other
C) Inclined at \[{{45}^{o}}\]to each other
D) None of these
Correct Answer: B
Solution :
Making the given equation homogeneous with the help of equation of line, we get\[9{{x}^{2}}+10xy-9{{y}^{2}}=0\]. Hence the lines are perpendicular.
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