Question

log7 1/343 help please

Answer 1

\[\LARGE \log_7\left(\frac{1}{343}\right)=\]
\[\LARGE \log_7\left(\frac{1}{7^3}\right)=\]
\[\LARGE \log_7(7^{-3})=\]
\[\LARGE -3\cdot \log_7(7)=\]
\[\LARGE -3\]