1 Separating the variables in first order ODEs

2 Applying the method of separation of variables to ODEs

3 Exact equations

4 Solving exact equations

5 Recognising an exact equation

6 The integrating factor

7 Finding the integrating factor for linear ODEs

8 Solving equations via the integrating factor

9 Engineering Example 1

  9.1 An RC circuit with a single frequency input