hw 1: for wed
1.A 2, 8
1.B 1, 2, 3, 4, 6
hw 2: for wed
1.C: 1 a,b; 2,3,4,7, 19
hw 3: for wed
2.A: 1,2,3,5,8, 15 (Hint: use theorem 2.23) 2B: 1, 2, 3, 6, 8
hw 4: for wed
2C: 1,2, 4, 8, 9
3A: 1, 2, 3, 4, 7, 8
hw 5: for wed
3B: 1, 2, 4, 5, 6, 9, 10, 27
3C: 1, 2, 3, 6, 10, 12
hw 6: for wed
3D: 1, 2, 5, 7, 14, 19, 20
3F: 1, 2, 4, 6, 7
hw 7: wed after vacation
5A: 2, 3, 4, 5, 8, 11, 23, 32 5B: 1,2, 11, 12, 13
hw 8:
5C: 1, 2, 5, 6, 14, 15
6A: 4, 5, 16, 17
6B: 1, 2, 3
hw 9:
6B: 5, 6, 7, 8 6C: 1, 2, 4, 5, 6, 7, 11, 12
hw 10:
7A: 1, 2, 3, 4
8A: 1,2 3, 4, 5
8B: 1, 2, 3,4 9
8C: 1,2,3, 10
Chapter 9 prove Theorem 9.7
10A: 1, 6, 7, 13, 14, 15
hw 11:
10B: 1, 4, 5, 7