(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Let G be a finite group of rotation of the plane about the origin. Prove that G is cyclic.

3. The attempt at a solution

What it means to be cyclic is that every element of the group can be written as a^n for some integer n.

I can see this is true if i take some examples. i.e. {0,pi/2, pi, 3pi/2} is cleraly cyclic. but i cant for the life of me figure out how to prove this.

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# Homework Help: Proving a group of rotaions is cyclic

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