| 103975 | Double-Angle, Half-Angle, and Reduction Formulas · Exercise 29 | Medium | |
| 103977 | Double-Angle, Half-Angle, and Reduction Formulas · Exercise 31 | Medium | |
| 103979 | Double-Angle, Half-Angle, and Reduction Formulas · Exercise 33 | Medium | |
| 103985 | Double-Angle, Half-Angle, and Reduction Formulas · Exercise 39 | Medium | |
| 103993 | Double-Angle, Half-Angle, and Reduction Formulas · Exercise 47 | Medium | |
| 103997 | Double-Angle, Half-Angle, and Reduction Formulas · Exercise 51 | Medium | |
| 103999 | Double-Angle, Half-Angle, and Reduction Formulas · Exercise 53 | Medium | |
| 104028 | Sum-to-Product and Product-to-Sum Formulas · Exercise 7 | Medium | |
| 104032 | Sum-to-Product and Product-to-Sum Formulas · Exercise 11 | Medium | |
| 104034 | Sum-to-Product and Product-to-Sum Formulas · Exercise 13 | Medium | |
| 104036 | Sum-to-Product and Product-to-Sum Formulas · Exercise 15 | Medium | |
| 104038 | Sum-to-Product and Product-to-Sum Formulas · Exercise 17 | Medium | |
| 104040 | Sum-to-Product and Product-to-Sum Formulas · Exercise 19 | Medium | |
| 104042 | Sum-to-Product and Product-to-Sum Formulas · Exercise 21 | Medium | |
| 104044 | Sum-to-Product and Product-to-Sum Formulas · Exercise 23 | Medium | |
| 104047 | Sum-to-Product and Product-to-Sum Formulas · Exercise 27 | Medium | |
| 104049 | Sum-to-Product and Product-to-Sum Formulas · Exercise 29 | Medium | |
| 104051 | Sum-to-Product and Product-to-Sum Formulas · Exercise 31 | Medium | |
| 104061 | Sum-to-Product and Product-to-Sum Formulas · Exercise 41 | Medium | |
| 104065 | Sum-to-Product and Product-to-Sum Formulas · Exercise 45 | Medium | |
| 104067 | Sum-to-Product and Product-to-Sum Formulas · Exercise 47 | Medium | |
| 104069 | Sum-to-Product and Product-to-Sum Formulas · Exercise 49 | Medium | |
| 104071 | Sum-to-Product and Product-to-Sum Formulas · Exercise 51 | Medium | |
| 104073 | Sum-to-Product and Product-to-Sum Formulas · Exercise 53 | Medium | |
| 107363 | Sum and Difference Identities · Exercise 45 | Medium | |
| 107370 | Double-Angle, Half-Angle, and Reduction Formulas · Exercise 7 | Medium | |
| 107375 | Double-Angle, Half-Angle, and Reduction Formulas · Exercise 29 | Medium | |
| 107381 | Double-Angle, Half-Angle, and Reduction Formulas · Exercise 53 | Medium | |
| 107387 | Sum-to-Product and Product-to-Sum Formulas · Exercise 17 | Medium | |
| 107389 | Sum-to-Product and Product-to-Sum Formulas · Exercise 19 | Medium | |
| 107391 | Sum-to-Product and Product-to-Sum Formulas · Exercise 21 | Medium | |
| 107398 | Sum-to-Product and Product-to-Sum Formulas · Exercise 45 | Medium | |
| 107400 | Sum-to-Product and Product-to-Sum Formulas · Exercise 47 | Medium | |