Radians, arc length, the unit circle, exact values, symmetry properties and the sine and cosine rules

What this note covers

1. Radians and degree conversion
2. Arc length and central angle
3. The unit circle and trigonometric ratios
4. Exact values and reference angles
5. Symmetry properties for general rotations
6. Sine and cosine rules in triangles

6 sections · 10 key terms & formulas · 6 common mistakes