CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2009

  • question_answer
    Which one of the following is not true?

    A)  Inverse of an element in a group is unique.

    B)  Fourth roots of unity form an additive abelian group.

    C)  Cancellation laws hold in a group.

    D)  Identity element in a group is unique.

    Correct Answer: B

    Solution :

    Fourth roots of unity form an additive abelian group is not true because 0 is not exist.


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