![]() Feel free to download this pdf for yourself or to share with your students. Here’s what I came up with-one sheet, front and back. I was trying to think about which ones we use again and again. I didn’t want to go overboard with the trig identities, for instance. ![]() (I also knew that I could give it to my students the next time I taught Calculus.) I wanted it to be compact. So I decided to make a cheat sheet that contains all of the essential information on trigonometry that he will need for his calculus class-reference triangles, the unit circle, some trigonometric identities, and so forth. ![]() Needless to say, the end of the school year didn’t go as planned. He said that they were supposed learn trigonometry last spring after the COVID-19 pandemic hit and school switched to fully online. ![]() While talking to him about his homework, I have come to realize that his knowledge of trigonometry is pretty weak. My son is taking a calculus course in high school this year. ![]()
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