oblicz logarytm .
Ela: Oblicz logarytm .
49−1+log7 3
16 14 − log4 3
16 maj 13:04
Artur z miasta Neptuna:
| | 3 | |
−1+log73 = −log77 + log73 = log7 |
| |
| | 7 | |
49= 7
2
| | 3 | |
49−1+log73 = 72log7 3/7 = 7log7 (3/7)2 = ( |
| )2 = ... |
| | 7 | |
drugi analogicznie
16 maj 13:07
Aga1.: lub
| | 1 | | 1 | | 1 | |
49−1+log73=49−1*49log73= |
| *72log73= |
| *7log732= |
| *32= |
| | 49 | | 49 | | 49 | |
16 maj 13:58