| π | ||
ctg2(3x− | +2=5 | |
| 6 |
| π | ||
ctg2(3x− | )=3 | |
| 6 |
| π | ||
|ctg(3x− | |=√3 | |
| 6 |
| π | π | |||
ctg(3x− | )=ctg | |||
| 6 | 6 |
| π | π | |||
3x− | = | +kπ k∊Z | ||
| 6 | 6 |
| π | ||
3x= | +kπ | |
| 3 |
| π | 1 | |||
x= | + | kπ należy do zbioru rozwiązań | ||
| 9 | 3 |
| π | ||
ctg(3x− | )=−√3 | |
| 6 |
| π | π | |||
ctg(3x− | )=−ctg | |||
| 6 | 6 |
| π | π | |||
3x− | )=− | +kπ k∊C | ||
| 6 | 6 |
| 1 | ||
x=0+ | kπ należy do zbioru rozwiązań | |
| 3 |