If the three lines ax+a2 y+1=0, bx+b2 y+1=0 and cx+c2 y+1=0 are concur – InterviewSolution

1.	If the three lines ax+a2 y+1=0, bx+b2 y+1=0 and cx+c2 y+1=0 are concurrent, show that at least two of three constants a, b, c are equal.
Answer» If the three lines $a x + a^{2} y + 1 = 0, b x + b^{2} y + 1 = 0$ and $c x + c^{2} y + 1 = 0$ are concurrent, show that at least two of three constants a, b, c are equal.

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