| Welke gelijkheid is fout ? |
|---|
| A. |
| B. tan 20° . cot 20° = 1 |
| C. sin 45° + cos 45° = |
| D. tan 30° = cot 60° |
| E. cos 20° = − cos 160° |
[ 4-1402 - op net sinds 7.1.16-(E)-3.11.2024 ]
|
Which equality is false ? |
|---|
| A. |
| B. tan 20° . cot 20° = 1 |
| C. sin 45° + cos 45° = |
| D. tan 30° = cot 60° |
| E. cos 20° = − cos 160° |