Question

Logarítimo de raiz de 27 na base de 1/9? 

Answer 1

$\log_{ \frac{1}{9} } \sqrt{27}= \log_{ 3^{-2} } 3^{ \frac{3}{2} }=- \frac{1}{2}. \frac{3}{2} \log_{3} 3=- \frac{1}{2}. \frac{3}{2}.1=- \frac{3}{4}$