4.1.2.3 Examples finding first integral \(R\left ( x,y,y^{\prime }\right ) \) for an exact second order ode
4.1.2.3.1 Example 1
4.1.2.3.2 Example 2
4.1.2.3.3 Example 3
4.1.2.3.4 Example 4
4.1.2.3.5 Example 5