| 2 | ||
1) ile wynosi liczba | ?
| |
| √7−√11 |
| √7 + √10 | ||
1) − | ||
| 2 |
| 2 | √7+√11 | 2(√7+√11) | ||||
1) | * | = | = | |||
| √7−√11 | √7+√11 | (√7−√11)(√7+√11) |
| 2(√7+√11) | 2(√7+√11) | √7+√11 | ||||
= | = | =− | ||||
| 7−11 | −4 | 2 |
| 1 | √10+3 | √10+3 | ||||
2) | = | = | =√10+3 | |||
| √10−3 | (√10−3)(√10+3) | 10−9 |
| −√7 − √11 | ||
Vizerku, a w 1) nie ma być na końcu przypadkiem | ? bo gdzieś Ci uciekł ten | |
| 2 |