| π | ||
a) D: R−{ | +kπ} , k∊C
| |
| 2 |
| π | ||
x= | +kπ
| |
| 4 |
| 1 | ||
cosx= | ||
| 2 |
| π | ||
x= | +kπ
| |
| 3 |
| π | ||
x= | + kπ lub cosx= 1/2 | |
| 4 |
| π | π | |||
x = | +2kπ lub x =− | +2kπ | ||
| 6 | 6 |
| π | ||
x= | +kπ | |
| 4 |
| 1 | ||
sinx= | ||
| 2 |
| π | ||
x= | +kπ | |
| 3 |
ctg dobrze ale
| π | 5π | |||
sinx=1/2 ⇔x= | +2kπ lub x= | +2kπ, | ||
| 6 | 6 |