Question about matrix groups and conjugate subgroups?
This question concerns the group of matrices
L = { (a 0)
(c d) : a,c,d ∈ R, ad =/ 0}
under matrix multiplication, and its subgroups
H = { (p 0, (p - q) q) : p,q ∈ R, pq =/ 0} and K = { (1 0, r 1) : r ∈ R}Show that one of H and K is a normal...