70.9 Chapter 3. Systems of two first order equations. Section 3.5 (Repeated Eigenvalues). Problems at page 188

70.9.1 problem 1
70.9.2 problem 2
70.9.3 problem 3
70.9.4 problem 4
70.9.5 problem 5
70.9.6 problem 6
70.9.7 problem 7
70.9.8 problem 8
70.9.9 problem 9
70.9.10 problem 10
70.9.11 problem 11
70.9.12 problem 12