17 Chapter 7. Systems of First-Order Differential Equations. Exercises page 329

17.1 problem 1
17.2 problem 3
17.3 problem 4
17.4 problem 5
17.5 problem 6
17.6 problem 13 (a)
17.7 problem 13 (b(i))
17.8 problem 13 (b(ii))
17.9 problem 13 (c(i))
17.10 problem 13 (c(ii))