5.1 problem Exercise 11.1, page 97
  5.2 problem Exercise 11.2, page 97
  5.3 problem Exercise 11.3, page 97
  5.4 problem Exercise 11.4, page 97
  5.5 problem Exercise 11.5, page 97
  5.6 problem Exercise 11.6, page 97
  5.7 problem Exercise 11.7, page 97
  5.8 problem Exercise 11.8, page 97
  5.9 problem Exercise 11.9, page 97
  5.10 problem Exercise 11.11, page 97
  5.11 problem Exercise 11.12, page 97
  5.12 problem Exercise 11.11, page 97
  5.13 problem Exercise 11.14, page 97
  5.14 problem Exercise 11.15, page 97
  5.15 problem Exercise 11.16, page 97
  5.16 problem Exercise 11.17, page 97
  5.17 problem Exercise 11.18, page 97
  5.18 problem Exercise 11.19, page 97
  5.19 problem Exercise 11.20, page 97
  5.20 problem Exercise 11.21, page 97
  5.21 problem Exercise 11.22, page 97
  5.22 problem Exercise 11.23, page 97
  5.23 problem Exercise 11.24, page 97
  5.24 problem Exercise 11.26, page 97
  5.25 problem Exercise 11.27, page 97
  5.26 problem Exercise 11.28, page 97
  5.27 problem Exercise 11.29, page 97