Double-angle identities Quiz: answer key
Every answer, with a link to its step-by-step solution
| # | Answer | Level | Solution |
|---|---|---|---|
| 1 | D 2425 | Easy | Solved step by step |
| 2 | 120169 | Easy | Solved step by step |
| 3 | B −119169 | Easy | Solved step by step |
| 4 | −725 | Easy | Solved step by step |
| 5 | B 725 | Medium | Solved step by step |
| 6 | 119169 | Medium | Solved step by step |
| 7 | D 119169 | Medium | Solved step by step |
| 8 | 2425 | Medium | Solved step by step |
| 9 | B −247 | Harder | Solved step by step |
| 10 | −119169 | 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%.