49.4 Chapter 2. Linear equations with constant coefficients. Page 52

49.4.1 problem 1(a)
49.4.2 problem 1(b)
49.4.3 problem 1(c)
49.4.4 problem 1(d)
49.4.5 problem 1(e)
49.4.6 problem 1(f)
49.4.7 problem 1(g)
49.4.8 problem 2(a)
49.4.9 problem 2(b)
49.4.10 problem 3(a)
49.4.11 problem 3(b)
49.4.12 problem 3(c)
49.4.13 problem 3(d)