Is this the right book for me? An ideal trigonometry handbook Whether you're new to trigonometry or just need to refresh your knowledge, Understand Trigonometry is the ideal handbook. Offering a complete introduction, with fully worked examples and carefully paced exercises at every level, progress steadily from the basics to more advanced skills and gain new confidence in your abilities. Understand Trigonometry includes: Chapter 1: The tangent Chapter 2: Sine and cosine Chapter 3: In three dimensions Chapter 4: Angles of any magnitude Chapter 5: Solving simple equations Chapter 6: The sine and cosine formulae Chapter 7: Radians Chapter 8: Relations between the ratios Chapter 9: Ratios and compound angles Chapter 10: The form a sinx and b cosx Chapter 11: The factor formulae Chapter 12: Circles related to triangles Chapter 13: General solution of equations Learn effortlessly with a new easy-to-read page design and interactive features: Not got much time? One, five and ten-minute introductions to key principles to get you started. Author insights Lots of instant help with common problems and quick tips for success, based on the author's many years of experience. Test yourself Tests in the book and online to keep track of your progress. Extend your knowledge Extra online articles to give you a richer understanding of the subject. Five things to remember Quick refreshers to help you remember the key facts. Try this Innovative exercises illustrate what you've learnt and how to use it.

Hugh Neill is an author and chief examiner in mathematics at all levels. He has taught and lectured and was staff inspector for mathematics in the ILEA.