Question

ex 5 va rog dau mute puncte si coroană​

Answer 1

Răspuns:

$n=3$

Explicație pas cu pas:

$(\frac{2}{3})^{n}:\frac{4}{3}=\frac{2}{9}\\ \\\frac{x}{y} (\frac{2}{3})^{n}=\frac{4}{3}*\frac{2}{9}\\\\(\frac{2}{3})^{n}=\frac{8}{27}\\ \\\frac{x}{y} (\frac{2}{3})^{n}=\frac{2^{3}}{3^{3}}\\ \\(\frac{2}{3})^{n}=(\frac{2}{3})^{3}\\ \\n=3$