Isha Ojha posted an Question
August 02, 2021 • 09:16 am 10 points
  • IIT JAM
  • Mathematics (MA)

the dihedral group dn, of order 2n has a subgroup of n rotations and a subgroup of order 2. explain why d, cannot be isomorphic to

The dihedral group D, of order 2n has a subgroup of n rotations and a subgroup of order 2. Explain why D, cannot be isomorphic to the exter- nal direct product of two such groups.

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