8 Chapter 8, Linear differential equations of order n. Section 8.4, Complex-Valued Trial Solutions. page 529

 8.1 problem Problem 1
 8.2 problem Problem 2
 8.3 problem Problem 3
 8.4 problem Problem 4
 8.5 problem Problem 5
 8.6 problem Problem 6
 8.7 problem Problem 7
 8.8 problem Problem 8
 8.9 problem Problem 9
 8.10 problem Problem 10
 8.11 problem Problem 11