49.1 Chapter 1.3 Introduction– Linear equations of First Order. Page 38

49.1.1 problem 1 (a)
49.1.2 problem 1 (b)
49.1.3 problem 1 (d)
49.1.4 problem 2 (a)
49.1.5 problem 2 (b)
49.1.6 problem 2 (c)
49.1.7 problem 2 (f)
49.1.8 problem 2 (h)
49.1.9 problem 3(a)
49.1.10 problem 4(a)
49.1.11 problem 5(a)