2.18 Chapter 1, section 1.2. Riccati Equation. subsection 1.2.7-3. Equations containing arctangent.

2.18.1 Problem 29
2.18.2 Problem 30
2.18.3 Problem 31
2.18.4 Problem 32
2.18.5 Problem 34
2.18.6 Problem 35