Вычислите.
1) $(\frac{2}{7})^2 =$
2) $(\frac{2}{3})^3 =$
3) $(\frac{1}{5})^3 =$
4) $(3\frac{1}{3})^2 =$
$(\frac{2}{7})^2 = \frac{2}{7} * \frac{2}{7} = \frac{2 * 2}{7 * 7} = \frac{4}{49}$
$(\frac{2}{3})^3 = \frac{2}{3} * \frac{2}{3} * \frac{2}{3} = \frac{2 * 2 * 2}{3 * 3 * 3} = \frac{8}{27}$
$(\frac{1}{5})^3 = \frac{1}{5} * \frac{1}{5} * \frac{1}{5} = \frac{1 * 1 * 1}{5 * 5 * 5} = \frac{1}{125}$
$(3\frac{1}{3})^2 = (\frac{10}{3})^2 = \frac{10}{3} * \frac{10}{3} = \frac{10 * 10}{3 * 3} = \frac{100}{9} = 11\frac{1}{9}$
Пожауйста, оцените решение
