Multiple Choice Questions on If beta gamma are the roots of the equation x 4 2x sup2 x 1 0 then find 3 alpha 3 beta 3 g........... for CDS Exam Preparation

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Multiple Choice Questions

If beta gamma are the roots of the equation x 4 2x sup2 x 1 0 then find 3 alpha 3 beta 3 g...........

Quantitative Aptitude (CDS) Quadratic Equations
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    If  ,β , γ are the roots of the equation (x-4 )(2x²-x+1)=0 then find  (3-α)(3-β)(3-γ) .

    -8

    Correct Answer

    8

    Incorrect Answer

    16

    Incorrect Answer

    -16

    Incorrect Answer
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    Explanation:

    expression ax³+bx²+cx+d= a(x-α)(x-β)(x-γ)
    putting x= 3 we get (3-α)(3-β)(3-γ) = -8

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