Multiple Choice Questions on Given an equation 2ax sup2 4abx a b sup2 c sup2 1 0 where a b c isin R Find the nature of roots ........... for CDS Exam Preparation

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Multiple Choice Questions

Given an equation 2ax sup2 4abx a b sup2 c sup2 1 0 where a b c isin R Find the nature of roots ...........

Quantitative Aptitude (CDS) Quadratic Equations
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    Given an equation, 2ax²+4abx-a(b²+c²+1 )=0 where ( a, b, c ) ∈R. Find the nature of roots. 

    both positive roots 

    Incorrect Answer

    both negative roots 

    Incorrect Answer

    both opposite sign roots

    Correct Answer

    can’t find

    Incorrect Answer
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    Explanation:

    Condition for roots of opposite sign αβ<0
    αβ= -?a(b?^2+c²+1)/2a
    Clearly, αβ always negative 

    By: bhavesh kumar singh
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