how to write {1, -1} in set builder form​

Question

how to write {1, -1} in set builder form​

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Serenity 1 month 2021-09-17T08:22:44+00:00 1 Answer 0 views 0

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    2021-09-17T08:24:32+00:00

    Answer:

    Clearly −1 and 1 are the roots of x

    2

    =1

    Hence given set in set builder form can be written as,

    A={x:x is root of the equation x

    2

    =1}

    Note that: this representation is not unique,

    but among the given option only option ‘C’ is correct

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