Multiple Choice Questions on If S x x2 1 0 x is real then S is ........ for NDA Exam Preparation

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Multiple Choice Questions

If S x x2 1 0 x is real then S is ........

Mathematics (NDA) Set theory
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    If S:{x:x2+1=0,x is real} then S is

    -1

    Incorrect Answer

    0

    Incorrect Answer

    1

    Incorrect Answer

    An empty set

    Correct Answer
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    Explanation:
    S:{x:x2+1=0,x \in R}
    ⇒S=\phi

    By: Munesh Kumari
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