Multiple Choice Questions on The value of x2 minus 4x 11 can never be less than ........ for CDS Exam Preparation

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Multiple Choice Questions

The value of x2 minus 4x 11 can never be less than ........

Quantitative Aptitude (CDS) Quadratic Equations
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    The value of x2 − 4x + 11 can never be less than

    7

    Correct Answer

    8

    Incorrect Answer

    11

    Incorrect Answer

    22

    Incorrect Answer
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    Explanation:

    x2 − 4x + 11 can be written as (x − 2)2 + 7
    Here (x − 2)2 ≥ 0
    So, given function can be not be less than 7.

    By: Munesh Kumari
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