3 Section 3.10, Systems of differential equations. Equal roots. Page 352

  3.1 problem Example 1, page 348
  3.2 problem Example 2, page 349
  3.3 problem 1
  3.4 problem 2
  3.5 problem 3
  3.6 problem 4
  3.7 problem 5
  3.8 problem 6
  3.9 problem 7
  3.10 problem 8