10 Chapter 1, section 1.2. Riccati Equation. subsection 1.2.6-2. Equations with cosine.

 10.1 problem 14
 10.2 problem 15
 10.3 problem 16
 10.4 problem 17
 10.5 problem 18
 10.6 problem 19
 10.7 problem 20
 10.8 problem 21
 10.9 problem 22
 10.10 problem 23
 10.11 problem 24
 10.12 problem 25
 10.13 problem 26