If the line joining the points (6, 6) and (1, – 3) is divided by the line x + λy = 2, internally in the ration 2 : 3 , then the value of λ is
A
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B
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C
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D
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Solution
The correct option is B Coordinates of the point P, dividing the join of A(6, 6) and B(1, – 3) in the ratio 2 : 3 are α=2(1)+3(6)2+3 =205=4andβ=2(−3)+3(6)2+3=−6+185=125∴(αβ)≡(4,125) SincethepointPliesonthelinex+λy=2∴4+λ(125)=2orλ=−56