Multiple Choice Questions on Find the values of lambda such that the roots of the equation x sup2 lambda x 4 0 differ by 1 n........... for CDS Exam Preparation

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Multiple Choice Questions

Find the values of lambda such that the roots of the equation x sup2 lambda x 4 0 differ by 1 n...........

Quantitative Aptitude (CDS) Quadratic Equations
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    Find the values of λ such that the roots of the equation x² + λx + 4 = 0 differ by 1. 

    ± 4√3 

    Incorrect Answer

    ± 4

    Correct Answer

    ± 2√3 

    Incorrect Answer

    ± 4√5

    Incorrect Answer
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    Explanation:

    D.Q.R = |α- β|=√(b^2-4ac)/a 
    Put a = 1 , b = λ , c = 4 nd on solving we get λ = ± 4

    By: bhavesh kumar singh
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