Homework #1

1. Exercise 1.2.1 (a), (c) on page 10
2. Exercise 1.2.2 (a), (c) on page 10
3. Exercise 1.2.5 (b) on page 10
4. Exercise 1.2.6 on page 10
5. Exercise 1.2.7 (a), (c) on pages 10~11
6. Exercise 1.2.15 on page 11