Chapter 5: Trigonometric Functions
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Course: MATH 142 (Precalculus II)
Overview
Trigonometric functions model periodic phenomena and are fundamental to calculus. The unit circle definition connects angles to coordinates, and these functions have important derivatives and integrals.
Source Material: OpenStax Precalculus Chapter 5 (CC BY 4.0)
Sections
| Section | Topic | Skills |
|---|---|---|
| 5.1 | Angles | Degrees, radians, arc length |
| 5.2 | Unit Circle: Sine and Cosine Functions | Unit circle, special angles |
| 5.3 | The Other Trigonometric Functions | Tangent, cotangent, secant, cosecant |
| 5.4 | Right Triangle Trigonometry | SOH-CAH-TOA, applications |
Skills in This Chapter
What This Unlocks
Mastering trigonometric functions prepares you for:
- Chapter 6: Graphing periodic functions
- Chapter 7: Trigonometric identities
- Stewart 1.2: Trigonometric models
- Stewart 3.3: Derivatives of trigonometric functions
- Stewart 5.5: Integration with trigonometric substitution
| Previous | Up | Next |
|---|---|---|
| Chapter 4 | Precalculus | Chapter 6 |