| x−3 | 1 | |||
log | ≤log | |||
| 27−x | 5*10 |
| x − 3 | ||
log | ≤ log 5−1 − log 10 x > 3 i x < 27 | |
| 27 − x |
| x − 3 | ||
log | ≤ log 15 − log 10 | |
| 27 − x |
| x − 3 | 1 | |||
log | ≤ log | |||
| 27 − x | 5*10 |
| x − 3 | 1 | |||
log | ≤ log | |||
| 27 − x | 50 |
| x − 3 | 1 | ||
≤ | |||
| 27 − x | 50 |
| x − 3 | 1 | ||
− | ≤ 0 | ||
| 27 − x | 50 |
| 50*( x − 3) | 27 − x | ||
− | ≤ 0 | ||
| 50*(27 − x) | 50*(27 − x) |
| 50x − 150 − 27 + x | |
≤ 0 | |
| 50*( 27 − x) |
| 51 x − 177 | |
≤ 0 ; mianownik jest > 0 , bo 27 − x > 0 | |
| 50*( 27 − x) |
| 24 | ||
x ≤ 3 | i x > 3 | |
| 51 |
| 24 | ||
x ∊ ( 3; 3 | > | |
| 51 |