The link below contains review material for an undergraduate-level course on differential equations. The content is based on MATH 51 at Tufts University and follows closely the text of *Differential Equations – A First Course** *by Guterman and Nitecki.

Differential Equations – review guide

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.