Multiple-angle equations Quiz: answer key
Every answer, with a link to its step-by-step solution
| # | Answer | Level | Solution |
|---|---|---|---|
| 1 | x = 15°, 75°, 195°, 255° | Easy | Solved step by step |
| 2 | x = 105°, 165°, 285°, 345° | Easy | Solved step by step |
| 3 | x = 22.5°, 112.5°, 202.5°, 292.5° | Easy | Solved step by step |
| 4 | x = 45°, 135°, 225°, 315° | Easy | Solved step by step |
| 5 | x = 22.5°, 157.5°, 202.5°, 337.5° | Medium | Solved step by step |
| 6 | x = 112.5°, 157.5°, 292.5°, 337.5° | Medium | Solved step by step |
| 7 | x = 67.5°, 157.5°, 247.5°, 337.5° | Medium | Solved step by step |
| 8 | x = 40°, 80°, 160°, 200°, 280°, 320° | Medium | Solved step by step |
| 9 | x = π/3, 2π/3, 4π/3, 5π/3 | Harder | Solved step by step |
| 10 | x = 30°, 150°, 270° | Harder | Solved step by step |
Grade
Count your right answers and divide by the number of questions: A 90% or more, B 80%, C 70%, D 60%, F below 60%.