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Vijay Singh chauhan Asked a Question
October 8, 2020 10:08 ampts 30 pts
The number of elements in Sn = 1 point On O n n!/2 O 2n Which of the follovwing is a 1 point groupoid but not a semigroup? O.) O R) O (N, +) O z,-
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  • Piyush
    Any doubt then you can ask.
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  • Deepak singh thankyou
    no.of elements in Sn = n! so option a is correct. and in second question (Z,-) is not associative (check) so not semi group , hence option d is correct. if any doubt then ask
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  • Piyush
    Option A Option D
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