# Math Help - Orders of elements of Dihedral Group D8

1. ## Orders of elements of Dihedral Group D8

R = $\left(\begin{array}{cccc}1&2&3&4 \\ 2&3&4&1\end{array}\right)$

Peter

Moderator edit: Latex fixed. @OP: Please add the rest of the question by replying to this post.