11 Chapter 1, section 1.2. Riccati Equation. subsection 1.2.6-3. Equations with tangent.

 11.1 problem 27
 11.2 problem 28
 11.3 problem 29
 11.4 problem 30
 11.5 problem 31
 11.6 problem 32
 11.7 problem 33
 11.8 problem 34
 11.9 problem 35
 11.10 problem 36
 11.11 problem 37