Multiple Choice Questions on Find the quadratic equation whose roots are the reciprocals of the roots of x 2 5x 3 0 ........ for CDS Exam Preparation

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Multiple Choice Questions

Find the quadratic equation whose roots are the reciprocals of the roots of x 2 5x 3 0 ........

Quantitative Aptitude (CDS) Quadratic Equations
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    Find the quadratic equation whose roots are the reciprocals of the roots of x^2 + 5x + 3=0.

     

    3x^2 +5x -2=0
     

    Incorrect Answer

    3x^2 +5x+2=0
     

    Correct Answer

    3x^2 -5x +2=0
     

    Incorrect Answer

    3x^2 -5x -2=0

    Incorrect Answer
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    Explanation:

    The quadratic equation whose roots are the reciprocal of 2x^2 + 5x + 3=0 can be obtained by replacing x by 1/x.
    Hence, 2(1/x)^2 + 5(1/x) + 3=0
    3x^2 + 5x + 2=0
     

    By: bhavesh kumar singh
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