66.9 Chapter 3. Linear Systems. Exercises section 3.1. page 258

66.9.1 problem 1
66.9.2 problem 2
66.9.3 problem 3
66.9.4 problem 4
66.9.5 problem 5
66.9.6 problem 6
66.9.7 problem 7
66.9.8 problem 8
66.9.9 problem 9
66.9.10 problem 24
66.9.11 problem 25
66.9.12 problem 26
66.9.13 problem 28
66.9.14 problem 29
66.9.15 problem 34