Homework #3 - MATH 621  Due Wed. Feb 23.


Hand-in.  Due 

  Sec. 3.1: 14(a),(b)

  Show that S_4 has no normal subgroups of order 3 (Hint: What does a subgroup of order 3 look like?)


Additional

Sec. 2.4: 5, 11

Sec. 3.1: 2, 4, 6, 7, 9

Sec. 3.2: 5, 7, 8