| π | π | |||
tg(2x− | )=−tg( | ) | ||
| 3 | 3 |
| π | π | |||
tg(2x− | )=tg(π− | ) | ||
| 3 | 3 |
| π | π | |||
2x− | =π− | +kπ | ||
| 3 | 3 |
| π | kπ | |||
x= | + | |||
| 2 | 2 |
| π | π | |||
tg(2x− | )=−tg( | ) | ||
| 3 | 3 |
| π | π | |||
tg(2x− | )=tg(− | ) | ||
| 3 | 3 |
| π | π | |||
2x− | =− | +kπ | ||
| 3 | 3 |
| kπ | ||
x= | ||
| 2 |
| π | π | π | ||||
x = | + k | , k∊C oznacza to samo co x = | (k+1), k∊C, a więc | |||
| 2 | 2 | 2 |
| kπ | ||
to samo co x = | ||
| 2 |