| 8 | √5−1 | √5−1 | ||||
Wykaż że liczby | , | , | tworzą ciąg geometryczny | |||
| √5−2 | √5+1 | 16 |
| √5−1 | √5+2 | √5+1 | |||
* | = | i dalej nieumiem | |||
| √5+1 | 8 | 16 |
| x | |
, 7y, √z | |
| abc |
| x | ||
(7y)2 = | * √z | |
| abc |
| √5−1 | √5+1 | √5+1 | ||||
= | * | = | ||||
| 16 | √5−1 | 16 |
| √5+1 | ||
czyli jest geometryczny q= | ||
| 16 |
| √5−1 | √5+1 | √5+1 | ||||
= | * | = | ||||
| 16 | √5−1 | 16 |
| √5+1 | ||
czyli jest geometryczny q= | ||
| 16 |