Solution
= Solution
On the real <domain of a function> $x>0$, the <quotient rule> gives
$$
\boxed{\frac d{dx}\left(\frac{\ln x}{x}\right)
=\frac{x(1/x)-\ln x}{x^2}=\frac{1-\ln x}{x^2}.}
$$
= Solution
On the real <domain of a function> $x>0$, the <quotient rule> gives
$$
\boxed{\frac d{dx}\left(\frac{\ln x}{x}\right)
=\frac{x(1/x)-\ln x}{x^2}=\frac{1-\ln x}{x^2}.}
$$