Attacking Trigonometry Problems

Perhaps the best thing is to quote from the book:

One of the keys to doing well in trigonometry is memorizing. … Another key is drill.

The focus is entirely on practice, practice, rather than on ideas. Such books can be useful, but there is little to say about them.

Fernando Q. Gouvêa remembers loving a book called 1500 Exercises in Algebra when he was 13. He is Carter Professor of Mathematics at Colby College.