McGraw-Hill Education Trigonometry Review and Workbook

The headline.

There was a lot in here that I did not learn in highschool. Good review

Good short explanation, and exercise

good one, my son almos finishe the whole book.

I used this Trigonometry book while tutoring my college trig students. It is a very well written workbook and is invaluable both to me and to my students. I particularly liked the section on inverse trig functions and also polar coordinates.