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If the three distinct lines x + 2...

If the three distinct lines
` x + 2ay + a = 0 , x+ 3by + b = 0` and
`x + 4ay + a = 0 ` are concurrent , then the point (a,b) lies on a .

A

circle

B

straight line

C

parabola

D

hyperbola

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The correct Answer is:
B
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