Multiple Choice Questions on The equation 1 x x 5 has ........ for NDA Exam Preparation

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Multiple Choice Questions

The equation 1 x x 5 has ........

Mathematics (NDA) Quadratic Equations
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    The equation  |1 - x | + x =5 has

    a rational root and an irrational root

    Correct Answer

    two rational roots

    Incorrect Answer

    two irrational roots

    Incorrect Answer

    no real roots

    Incorrect Answer
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    Explanation:

    | 1- x | +x2 =5
    =>1-x+x2 =5 ,x<1
    Or −1+x+x2=5,x≥1
    ⇒x2−x−4=0,x<1   or
    x2+x−6=0,x≥1
    ⇒x=(−1−√17)/2 or x=2

    Equation has a rational root and an irrational root.

    By: Munesh Kumari
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