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  3. CET Karnataka Engineering

CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2006

  • question_answer
    A subset of the additive group of real numbers which is not a subgroup is :

    A)  ({0}, +)                                

    B)  (Z, +)

    C)  (N, +)                  

    D)  (Q, +)

    Correct Answer: C

    Solution :

    In additive subgroup 0 is the identity element, but \[0\,\in /N\]. \[\therefore \] Required set \[(N,+)\] which is not subgroup.


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