Trigonometry

1. Compound angles

2. Double angles

3. Questions that require a triangle sketch

4. Reduction formulas - simplifying expressions

5. Simplifying expressions - numerical angles

6. More questions that require a sketch

7. Proving identities

8. Trig equations (revision)

9. Trig equations - compound and double angles

10. Trig functions

11. More trig functions

12. Solving triangles with numerical values

13. Solving triangles with variables