Derivatives of sin x and cos x and their use in practical problems

What this note covers

1. Radians and the meaning of the derivative
2. Establishing the sine and cosine rules
3. Amplitudes, phases and linear inner functions
4. Tangents, turning points and interval signs
5. Motion and repeated differentiation
6. Interpreting a periodic model responsibly
7. Connected reasoning across Trigonometric functions
8. Error analysis and final checks for Trigonometric functions

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