Here is review material for an undergraduate course on differential equations based on Guterman and Nitecki’s *Differential Equations: A First Course**.*

Errata:

Page 7, Example 1.2.2 – On the fifth line, the right-hand side of the expression should read -1/2 ln|(t+1)/(t-1)| + C. Note that there is a multiplicative factor of -1/2 that was missing.