CHAPTER4
Trigonometry: Last Stop Before Calculus
In This Chapter
- Characteristics of periodic functions
- The six trigonometric functions
- The importance of the unit circle
- Key trigonometric formulas and identities
Trigonometry, the study of triangles, has been around for a long time, creeping mysteriously from shadow to shadow and occasionally snatching unwary students into its razor-sharp clutches and causing the end of their mathematics careers. Few things cause people to panic like trig does, with the exception of TV weatherman Al Roker.
It is a commonly held belief that children on All Hallowâs Eve historically have marched from door to ...
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