Odpowiedź:
A
Szczegółowe wyjaśnienie:
[tex]1+\frac{1}{2+\frac{1}{3+\frac{1}{4+\frac{1}{5}}}}=1+\frac{1}{2+\frac{1}{3+\frac{1}{\frac{20}{5}+\frac{1}{5}}}}=1+\frac{1}{2+\frac{1}{3+\frac{1}{\frac{21}{5}}}}=1+\frac{1}{2+\frac{1}{3+\frac{5}{21}}}=1+\frac{1}{2+\frac{1}{\frac{63}{21}+\frac{5}{21}}}=1+\frac{1}{2+\frac{1}{\frac{68}{21}}}=1+\frac{1}{2+\frac{21}{68}}=1+\frac{1}{\frac{136}{68}+\frac{21}{68}}=1+\frac{1}{\frac{157}{68}}=1+\frac{68}{157}=\frac{157}{157}+\frac{68}{157}=\frac{225}{157}[/tex]
Odpowiedź A
