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If the lines x+ay=a=0, bx+y+b=0, cx+cy+1...

If the lines `x+ay=a=0, bx+y+b=0, cx+cy+1=0` (a,b,c being distinct and `!=1`) are concurrent, then the value of `(a/(a-1)+b/(b-1)+c/(c-1))` is

A

1

B

`-1`

C

2

D

0

Text Solution

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The correct Answer is:
A
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