How to find the left and right cosets of the subgroup $H = \{r_0, s_0\}$ of $D_4$? And are they the same?
If we let $H' = \{r_0,r_2\}$, are the left and right cosets the same, where $H'$ is a subgroup of $D_4$?
Thanks
How to find the left and right cosets of the subgroup $H = \{r_0, s_0\}$ of $D_4$? And are they the same?
If we let $H' = \{r_0,r_2\}$, are the left and right cosets the same, where $H'$ is a subgroup of $D_4$?
Thanks