Формула:
![image](https://tex.z-dn.net/?f=log_%7Ba+%5E%7Bk%7D%7Db+%5E%7Bn%7D%3D+%5Cfrac%7Bn%7D%7Bk%7Dlog_ab%2C+%5C%5C+a%3E0%2C+%5C%5C+b%3E0+++)
0, \\ b>0 " alt="log_{a ^{k}}b ^{n}= \frac{n}{k}log_ab, \\ a>0, \\ b>0 " align="absmiddle" class="latex-formula">
поэтому
Формула логарифма степени:
![image](https://tex.z-dn.net/?f=log_ab+%5E%7Bn%7D%3Dnlog_ab%2C++%5C%5C+a%3E0%2C+%5C%5C+b%3E0+)
0, \\ b>0 " alt="log_ab ^{n}=nlog_ab, \\ a>0, \\ b>0 " align="absmiddle" class="latex-formula">
Итак,