Homework #1 - MATH 621 Hand-in. Due Wednesday, Feb 2 Sec. 1.1: 7 (Note: To show that it is well defined, you have to show that for x,y in G, x*y is in G.) Sec. 1.2: 2, 3, 4 Additional Sec. 1.1: 1, 2, 6, 8, 17, 22 Sec. 1.2: 5, 6, 8