14.11 Chapter 2. Second order differential equations. Section 2.5. Method of judicious guessing. Excercises page 164

14.11.1 problem 1
14.11.2 problem 2
14.11.3 problem 3
14.11.4 problem 4
14.11.5 problem 5
14.11.6 problem 6
14.11.7 problem 7
14.11.8 problem 8
14.11.9 problem 9
14.11.10 problem 10
14.11.11 problem 11
14.11.12 problem 12
14.11.13 problem 13
14.11.14 problem 14
14.11.15 problem 15
14.11.16 problem 16
14.11.17 problem 18 (b)