10 Chapter 4. Higher Order Equations. Exercises 4.2, page 147

10.1 problem 1
10.2 problem 2
10.3 problem 3
10.4 problem 4
10.5 problem 5
10.6 problem 6
10.7 problem 7
10.8 problem 8
10.9 problem 9
10.10 problem 10
10.11 problem 11
10.12 problem 12
10.13 problem 13
10.14 problem 14
10.15 problem 15
10.16 problem 16
10.17 problem 17
10.18 problem 18
10.19 problem 19
10.20 problem 20
10.21 problem 21
10.22 problem 22
10.23 problem 23
10.24 problem 24
10.25 problem 25
10.26 problem 26
10.27 problem 27
10.28 problem 28
10.29 problem 29
10.30 problem 30
10.31 problem 31
10.32 problem 33
10.33 problem 34
10.34 problem 35
10.35 problem 37 (a)
10.36 problem 37 (b)
10.37 problem 39
10.38 problem 40 (a)
10.39 problem 40 (b)
10.40 problem 40 (c)
10.41 problem 40 (d)
10.42 problem 41
10.43 problem 42 (a)
10.44 problem 42 (b)
10.45 problem 43