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Discussion :: Sets, Relations and Functions

  1.  If (G, .) is a group such that (ab)- 1 = b-1 a-1, ∀ a, b ∈ G, then G is a/an

    2. A.

    abelian group
    B.

    non-abelian group
    C.

    commutative semi group
    D.

    None of these

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    Answer : Option A

    Explanation :

    abelian group

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