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The lines ax+by+c=0, bx+cy+a =0, cx+ay+b...

The lines `ax+by+c=0, bx+cy+a =0, cx+ay+b =0` are concurrent when-

A

`ab ^(2) + bc^(2) +ca^(2)=abc`

B

`a ^(3) +b^(3) +c^(2) =3abc`

C

`ab+bc+ca=0`

D

`a ^(2) +b^(2) +c^(2) =ab +bc+ca`

Text Solution

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The correct Answer is:
B
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