Multiple Choice Questions on The sign of the quadratic polynomial ax2 bx c is always positive if ........ for CDS Exam Preparation

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Multiple Choice Questions

The sign of the quadratic polynomial ax2 bx c is always positive if ........

Quantitative Aptitude (CDS) Algebra
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    The sign of the quadratic polynomial ax2 + bx + c is always positive if

    a is positive and b2 - 4ac ≤ 0

    Correct Answer

    a is positive and b2 - 4ac ≥ 0

    Incorrect Answer

     a can be any real number and b2 - 4ac ≤ 0

    Incorrect Answer

    a can be any real number and b2 - 4ac ≥ 0

    Incorrect Answer
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    Explanation:


    The sign of the quadraticpolynomial ax2+bx+c is always positive if a is positive and b2−4ac≤0
    Comment:
    The sign of the quadratic polynomial ax2+bx+c is always negative if a is negative and b2−4ac≥0

    By: Munesh Kumari
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