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Ishu posted an Question
October 28, 2021 • 07:13 am 10 points
  • IIT JAM
  • Mathematics (MA)

13. let g be a group of order 48 and h be a subgroup of order 24.then : (a) h is normal (b) h is commutative (c) h is not normal (d) none of these

13. Let G be a group of order 48 and H be a subgroup of order 24.Then : (a) H is normal (b) H is commutative (c) H is not normal (d) none of these

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    Navdeep goyal 1 Best Answer

    index of H in G is 2 so it is normal

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    how index 2

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    index of H in G means number of different left or right coset=o(G)/o(H)

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