| 4 | 1 | |||
i takie zadanie:(mi wychodzi | ,a w odpowiedziach jest | ) | ||
| 25 | 25 |
| 49 | 1 | 9 | ||||
( | * | )2*x = (1 − 5* | *2)2 | |||
| 4 | 49 | 100 |
| 1 | 9 | |||
( | )2x = (1− | )2 | ||
| 4 | 10 |
| 1 | 1 | ||
* x = | |||
| 16 | 100 |
| 16 | 4 | |||
x = | = | , w odpowiedziach jest źle ![]() | ||
| 100 | 25 |
| 16 | 2 | |||
log 0,0016 5=x⇔ 0,0016 x = 5 ⇔ ( | )x = 5 ⇔ ( | )4x= 5 ⇔ | ||
| 10000 | 10 |
| 1 | ||
⇔ ( | )4x = 5 ⇔ 5(−4x) = 51 ⇔ −4x = 1 ⇔x= −14 | |
| 5 |