M417 Homework 4 Spring 2004

Instructions : Be prepared to discuss and present in class on Wed., February 11. Written solutions are due Fri., February 13.

1. Determine the orders of the groups of symmetries of the Platonic solids.
2. If x² = e for every element x of a group G, show that G is abelian.
3. # 16, p. 38.
4. # 50, p. 71.
5. # 52, p. 71.