st-line

Question: The straight lines $x+2y-9=0,$ $3x+5y-5=0$ and $ax+by-1=0$ are concurrent, if the straight line $35x-22y+1=0$ passes through the point



1) $(a,b)$
2) $(b,a)$
3) $(-a,-b)$
4) None of these
Solution: Explanation: No Explanation
Concurrency of three lines

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