Question

realize a conversão dos logaritmos abaixo​

Answer 1

$\Large\boxed{\begin{array}{l}\underline{\rm Mudanc_{\!\!,}a~de~base}\\\tt a)~\sf\ell og_59=\dfrac{\ell og 9}{\ell og5}\\\\\tt b)~\sf\ell og_220=\dfrac{\ell og20}{\ell og2}\\\\\tt c)~\sf\ell og_2100=\dfrac{\ell og100}{\ell og2}\end{array}}$