2.2 Chapter 4. Autonomous systems. Exercises at page 69

2.2.1 problem 1
2.2.2 problem 2
2.2.3 problem 3
2.2.4 problem 5 (i)
2.2.5 problem 5 (ii)
2.2.6 problem 5 (iiI=i)
2.2.7 problem 5 (iv)
2.2.8 problem 6 (i)
2.2.9 problem 6 (ii)
2.2.10 problem 6 (iii)
2.2.11 problem 6 (iv)