Outstanding reference page/cheat sheet for students.
I often found that my students were lacking in Trigonometry which would cause hang ups learning Calculus or Calc 2. I would go through this page with students at the beginning of the year and allow them to reference it throughout.
Completed page also included (in red) for your reference.
Editable format in Microsoft Word. (Personally, I only include the reference formulas in the lower right box for Calc 2 students.)