Let n be an integer greater than 1. Viewing Dn as a group
Chapter 5, Problem 60E(choose chapter or problem)
Problem 60E
Let n be an integer greater than 1. Viewing Dn as a group of permutations of a regular n-gon with consecutive vertices labeled 1, 2, . . . , n, determine for which n all the permutations corresponding to reflections in Dn are even permutations. Hint: Consider the fours cases for n mod 4.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer