In this video, I will show you how to evaluate an angle in degrees using the sum formula of cosine. We will need to use the ...

Seems like budget cuts, staffing cuts and revenue cuts are all the rage these days. Perhaps more than ever, you and your team will be required to do more with less — much less of everything. At some ...

Important update, Jan. 17 at 18:00 UTC: There have been a lot of objections raised about the video mentioned below and the way I describe the math therein. It’s more than I can simply add or update ...

I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those ...