5 Section 1.10. Page 80

5.1 problem 4
5.2 problem 5
5.3 problem 6
5.4 problem 7
5.5 problem 8
5.6 problem 9
5.7 problem 10
5.8 problem 11
5.9 problem 12
5.10 problem 13
5.11 problem 14
5.12 problem 15
5.13 problem 16
5.14 problem 17
5.15 problem 19