Вычислите:
1) $(\sqrt{6})^2$;
2) $(-\sqrt{21})^2$;
3) $(3\sqrt{2})^2$;
4) $(-4\sqrt{5})^2$;
5) $(-\frac{\sqrt{6}}{3})^2$;
6) $(\frac{1}{4}\sqrt{26})^2$.
$(\sqrt{6})^2 = 6$
$(-\sqrt{21})^2 = (-1)^2 * (\sqrt{21})^2 = 1 * 21 = 21$
$(3\sqrt{2})^2 = 3^2 * (\sqrt{2})^2 = 9 * 2 = 18$
$(-4\sqrt{5})^2 = (-4)^2 * (\sqrt{5})^2 = 16 * 5 = 80$
$(-\frac{\sqrt{6}}{3})^2 = (-1)^2 * \frac{(\sqrt{6})^2}{3^2} = 1 * \frac{6}{9} = \frac{2}{3}$
$(\frac{1}{4}\sqrt{26})^2 = (\frac{1}{4})^2 * (\sqrt{26})^2 = \frac{1}{16} * 26 = \frac{13}{8} = 1\frac{5}{8}$
Пожауйста, оцените решение
