13.4 Section 1.9. Page 66

13.4.1 problem 3
13.4.2 problem 4
13.4.3 problem 5
13.4.4 problem 6
13.4.5 problem 7
13.4.6 problem 8
13.4.7 problem 9
13.4.8 problem 10
13.4.9 problem 11