Educo International
College Algebra+Trigonometry
R 1,336
Basic Books
The Magic of Math: Solving for x and Figuring Out Why
R 848
Birkhauser
Trigonometry
R 1,334
Questing Vole Press
Essential Trigonometry: A Self-Teaching Guide
R 481
Tangential Projects Press
Precalculus: An Investigation of Functions
R 1,785
PEARSON EDUCATION
Trigonometry: A Unit Circle Approach
R 3,493
Teach Yourself
Trigonometry: A Complete Introduction (Teach Yourself)
R 1,130
For Dummies
Calculus: 1001 Practice Problems For Dummies (+ Free Online Practice)
R 1,360
Lulu.com
AP Precalculus: The Teacher's Compendium
R 3,247
PEARSON EDUCATION
Trigonometry (10th Edition)
R 1,036