42.2 Chapter 3. Ordinary Differential Equations. Section 3.3 SECOND ORDER ODE. Page 147

42.2.1 problem Example 3.17
42.2.2 problem Example 3.18
42.2.3 problem Example 3.19
42.2.4 problem Example 3.21
42.2.5 problem Example 3.22
42.2.6 problem Example 3.23
42.2.7 problem Example 3.24
42.2.8 problem Example 3.26