Cheatsheet of these topics

1.1 Definition and Terminology

1.2 Initial Value Problems

2.1 Solution curves without a solution

2.2 Separable Equations

2.3 Linear Equations

2.4 Exact Equations, integrating factors

2.5 Solutions by Substitution (Bernoulli, homogeneous, linear substitution)

1.3 Differential equations as Mathematical models

2.7 Linear models(growth/decay, heating/cooling, circuits, mixtures)

2.8 Non-linear models (Population dynamics, logistic equation, chemical

 reaction, ...