Question

Логарифмы, 10-11 класс

Answer 1

$4^{-log_4 frac{1}{3} }=4^{log_4 3 }=3$


$frac{1}{2} log_{12}14 * frac{1}{2} log_{14}12= frac{1}{4} frac{log_{14}14}{log_{14}12} log_{14}12= frac{1}{4} =0,25$