Os únicos números reais x que satisfazem a igualdade \(x=1+\frac{1}{1+\frac{1}{\times}}\) são
\(\frac{1+\sqrt{5}}{2}\ e\ \frac{1-\sqrt{2}}{2}\)
\(\frac{1+\sqrt{5}}{2}\ e\ \frac{1-\sqrt{3}}{2}\)
\(\frac{1+\sqrt{5}}{2}\ e\ \frac{1-\sqrt{5}}{2}\)
\(\frac{1+\sqrt{3}}{2}\ e\ \frac{1-\sqrt{3}}{2}\)