Determine all subgroups of R* (nonzero reals under
Chapter 9, Problem 36E(choose chapter or problem)
Determine all subgroups of R* (nonzero reals under multiplication) of index 2.
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