If the lines \[ax+2y+1=0,bx+3y+1=0\] and \[cx+4y+1=0\] are concurrent, then a, b, c are in

If the lines \[ax+2y+1=0,bx+3y+1=0\] and \[cx+4y+1=0\] are concurrent,

1.	If the lines \[ax+2y+1=0,bx+3y+1=0\] and \[cx+4y+1=0\] are concurrent, then a, b, c are in
A.	A. P.
B.	G. P.
C.	H. P.
D.	None of these
Answer» B. G. P.

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If the lines \[ax+2y+1=0,bx+3y+1=0\] and \[cx+4y+1=0\] are concurrent, then a, b, c are in

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