On this page, you will find articles which will be useful in understanding topics when you need more (or different) explanation on topics than those I give, or the ones found in your text. These are organized into subpages according to topic.
The topic Series and Differential Equations also contains an example spreadsheet which uses a Macluarin series formula to estimate the hyperbolic cosine function. It can be modified to speed up your homework on other Maclaurin problems.