Multiple Choice Questions on If the graph of a quadratic polynomial lies entirely above the x axis then which one of the followin........... for NDA Exam Preparation

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Multiple Choice Questions

If the graph of a quadratic polynomial lies entirely above the x axis then which one of the followin...........

Mathematics (NDA) Complex Numbers
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    If the graph of a quadratic polynomial lies entirely above the x-axis, then which one of the following is correct?

    Both the roots are real

    Incorrect Answer

    One root is real and the other is complex

    Incorrect Answer

    Both the roots are complex

    Correct Answer

    Cannot say

    Incorrect Answer
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    Explanation:

    If graph of quadratic lies entirely above x-axis then D>0. So, both roots are complex.

    By: Munesh Kumari
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