| 1 | 1 | |||
log2 x + | log2 x + | log2 x = 2 | ||
| 2 | 3 |
| 1 | 1 | |||
( 1 + | + | ) log2 x = 2 | ||
| 2 | 3 |
| 11 | 6 | ||
log2 x = 2 / * | |||
| 6 | 11 |
| 12 | ||
log2 x = | ||
| 11 |
| 1 | ||
Korzystamy z wzoru: logaα x = | *loga x | |
| α |
| 1 | 1 | ||
log2 x + | log2 x + log2 x = 7 | ||
| 4 | 2 |
| 1 | 1 | |||
( | + | + 1 ) *log2 x = 7 | ||
| 4 | 2 |
| 7 | 4 | ||
* log2 x = 7 / * | |||
| 4 | 7 |