58.23 Chapter 12, Sturm-Liouville problems. Section 12.1, Exercises page 596

58.23.1 problem 1
58.23.2 problem 2
58.23.3 problem 3
58.23.4 problem 4
58.23.5 problem 7
58.23.6 problem 8
58.23.7 problem 9
58.23.8 problem 10