Multiple Choice Questions on If alpha amp beta are the roots of the equation ax sup2 bx c 0 then what is the condition for ........... for CDS Exam Preparation

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Multiple Choice Questions

If alpha amp beta are the roots of the equation ax sup2 bx c 0 then what is the condition for ...........

Quantitative Aptitude (CDS) Quadratic Equations
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     If α & β are the roots of the equation ax²+bx+c=0 then what is the condition for both roots are of opposite sign.
     
     

     D ≥0 ∩( α+β )>0 ∩(αβ)>0 

    Incorrect Answer

     αβ > 0

    Incorrect Answer

    αβ < 0

    Correct Answer

    D ≥0 ∩ α+β<0∩αβ>0

    Incorrect Answer
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    Explanation:

    condition for both roots are of opposite sign  αβ < 0

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