Question

Записать логорифмы а) 3^-1=1/3 б)81^3/4=27

Answer 1

$3^{-1}= \frac{1}{3}\; \; =\ \textgreater \ \; \; log_3 \frac{1}{3}=-1 \\\\81^{ \frac{3}{4}}=27\; \; =\ \textgreater \ \; \; log_{81}27= \frac{3}{4}$