A really cool factoring application and a really cool FOIL trick. Faster calculations! No letters! No variables!

A classic problem about framing a photograph.

Systems of equations are not always linear, as we see in early Algebra classes. The techniques are mostly the same for other kinds of systems.

This problem is all about how the definitions of basic geometric figures often imply many things to help us solve problems!

Anything that is intrinsically periodic can be described by trigonometric functions. Here is an interesting one. And no, the Earth isn’t flat. Read on.

This one took some work and some insight. The detours were fun and interesting. Read all about it!

An interesting one to flex our muscles on some limit rules and limit calculations.

Simple scenario for using a 1-sample z-proportion test.

Find all of the tangents that two functions have in common.

Another integral solved 2 ways!

One integral. Two ways to solve.