7.4 Section 1.9. Page 66

7.4.1 problem 3
7.4.2 problem 4
7.4.3 problem 5
7.4.4 problem 6
7.4.5 problem 7
7.4.6 problem 8
7.4.7 problem 9
7.4.8 problem 10
7.4.9 problem 11