Prove that the following sets of three l...

Prove that the following sets of three lines are concurrent: `15 x-18 y+1=0,\ 12 x+10 y-3=0\ a n d\ 6x+66 y-11=0.`

A

Parallel

B

Perpendicular

C

Concurrent

D

None of these

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The correct Answer is:

C

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