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Vijay Singh chauhan Asked a Question
May 30, 2022 5:03 pmpts 30 pts
Example 27 Let the operation * 1S defined on the set of real number R as follows: a*b=|a-b| for all a, b eR Prove that Is a commutative binary operation on R but (R, *) is not a semigroup.
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  • Pankaj dwivedi Best Answer
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