Tag Archives: trigonometry

A large portion of the “standard” precalculus curriculum consists of a rather tedious recitation of trigonometric identities. I am largely of the opinion that there are only a couple that one really needs to know—for example, the Pythagorean identity (\(\sin(\theta)^2 … Continue reading →

I have a much younger sister who is currently in high school. In her mathematics classes, she has started to get into trigonometry and trigonometric identities. A few nights ago, she had some questions, which got me thinking once again … Continue reading →