Multiple Choice Questions on find the value of lambda for which the curve y lambda ndash 4 x sup2 4x 1 0 touches the x ndash axis........... for CDS Exam Preparation

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Multiple Choice Questions

find the value of lambda for which the curve y lambda ndash 4 x sup2 4x 1 0 touches the x ndash axis...........

Quantitative Aptitude (CDS) Quadratic Equations
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    find the value of λ for which the curve y = ( λ – 4 ) x² - 4x + 1 =0 touches the x – axis . 

    8

    Correct Answer

    6

    Incorrect Answer

    4

    Incorrect Answer

    -4

    Incorrect Answer
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    Explanation:
    putting D = 0
    b² – 4ac = 0
    putting values we get λ =8
     

    By: bhavesh kumar singh
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