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Math Chapter Wise question with answer

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Question #49,475
Math Chapter Wise Conic Section English MCQ TGT 2001

Q.If 2 2 12x 10xy 2y 11x 5y 0 − + + − + λ = − + + − + λ = − + + − + λ = − + + − + λ = represents the pair two straight lines then what will be the value of λ.

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