Math 247F - Homework 12,  No due date. This homework need not be turned in
but I suggest you do the problems anyway to help you prepare for the final.

All problems are from Armsrong "Groups and symmetry".

1. Chapter 13:  13.2, 13.4
   
2. Chapter 15:  15.2, 15.4,  15.5
   
3. Chapter 16:  16.1, 16.2,  16.3, 16.6