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[" If the lenes "(1+lambda)x+(4-lambda)y+(2+lambda)=0" and "(4-lambda)x-(1+lambda)y+(6-3 lambda)=0" are concurrent at points "A" and "B],[" respecively and intersect at "C" ,then equation of the locus of centrold of "Delta ABC" is "],[O(x+(3)/(2))^(2)+(y+(7)/(10))^(2)-(17)/(10)],[" O "(x-(3)/(2))^(2)+(y-(7)/(16))^(2)-(17)/(10)],[" O "(x+(3)/(2))^(2)+(y+(7)/(10))^(2)=(74)/(x+2)],[" O none of these "]

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