0 votes 0 votes Prove that if $N$ and $K$ are normal subgroups of a group $G$ such that $N \cap K=\left\{e_{G}\right\}$, then $x y=y x, \forall x \in N, \forall y \in K$. Others isi2020-pcb-mathematics descriptive + – admin asked Aug 8, 2022 • edited Aug 25, 2022 by Lakshman Bhaiya admin 109 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.