In this video we will cover the key topics you will need to know before starting our chapter on Trigonometry in Pre-calculus.

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

Plimpton 322, the tablet in question, is certainly an alluring artifact. It’s a broken piece of clay roughly the size of a postcard. It was filled with four columns of cuneiform numbers around 1800 ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Some researchers say the Babylonians invented trigonometry—and ...