I am having problem working with the objects in the title. Working with permutations, rotations and reflections is fine, but I have problem with the following:(adsbygoogle = window.adsbygoogle || []).push({});

Showing a subgroup is or is not normal (usually worse in the case of symmetric groups)

Finding a subgroup of order n.

Showing that there is no subgroup of order n.

I cannot remember encountering many exercises that helped me learn to work with subgroups of symmetric and dihedral groups. Are there any strategies I can follow, and, even better, any sets of exercises anybody here recommends?

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# Subgroups of Symmetric and Dihedral groups

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