Question

Se log a = 3 e log b = 4, os valores de log (ab) e log (b/a) são, respectivamente

Answer 1

$\boxed{\begin{array}{l}\boldsymbol{ Resposta:}\\\sf log(ab)=7\\\sf log\bigg(\dfrac{a}{b}\bigg)=-1\\\boldsymbol{Explicac_{\!\!,}\tilde ao~passo~a~passo:}\\\sf log(ab)=log(a)+log(b)=3+4=7\\\\\sf log\bigg(\dfrac{a}{b}\bigg)=log(a)-log(b)=3-4=-1\end{array}}$