| 1 | ||
|x2−1| ≤ | ||
| 2 |
| 1 | 1 | |||
x2−1 ≤ | i x2−1 ≥− | |||
| 2 | 2 |
| 1 | ||
wpierw x2−1 ≤ | ||
| 2 |
| 3 | 3 | |||
(x−√ | )(x+√ | ) < 0 | ||
| 2 | 2 |
| 3 | 3 | |||
xe(−√ | ,√ | ) | ||
| 2 | 2 |
| 1 | ||
wpierw x2−1 ≥− | ||
| 2 |
| 1 | 1 | |||
(x−√ | )(x+√ | ) < 0 | ||
| 2 | 2 |
| 1 | 1 | |||
xe(−oo,−√ | > u <√ | .+oo) | ||
| 2 | 2 |
| 1 | 1 | 3 | 3 | |||||
odp:xe(−oo,−√ | > u <√ | .+oo) u (−√ | ,√ | ) | ||||
| 2 | 2 | 2 | 2 |
| √2 | √2 | √6 | √6 | |||||
[x≤− | lub x≥ | ] i [x∊<− | , | >] | ||||
| 2 | 2 | 2 | 2 |
część wspólna
| 3 | 1 | 1 | 3 | |||||
x ∊ <−√ | , −√ | > u <√ | ,√ | > | ||||
| 2 | 2 | 2 | 2 |