65.15 Chapter 28, Distinct real eigenvalues. Exercises page 282

65.15.1 problem 28.2 (i)
65.15.2 problem 28.2 (ii)
65.15.3 problem 28.2 (iii)
65.15.4 problem 28.2 (iv)
65.15.5 problem 28.6 (iii)