- #1

zcdfhn

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_{n}, which is the dihedral group of size n is non-abelian.

I am stuck, but my attempt at a solution was to show that some the symmetries in D

_{n}are not commutative under composition, but I do not know how to prove that for n cases. My other attempt was to find a isomorphism to D

_{n}and show that its isomorphism is not abelian, but I have no clue where to start from there.

I would appreciate either an answer, or something to help me get going. Please be precise and I thank you so much in advance.