635 Вправа 635Алгебра 8 клас Бевз 2025 · § 13 · стор. 127

635. Обчисли значення виразу.

а) ${\displaystyle \sqrt{\frac{1}{64}}=}$${\displaystyle \frac{1}{8}}$, бо ${\displaystyle {\left(\frac{1}{8}\right)}^2=}$${\displaystyle \frac{1}{64}}$;

б) ${\displaystyle \sqrt{\frac{9}{25}}=}$${\displaystyle \frac{3}{5}}$, бо ${\displaystyle {\left(\frac{3}{5}\right)}^2=}$${\displaystyle \frac{9}{25}}$;

в) ${\displaystyle \sqrt{\frac{25}{36}}=}$${\displaystyle \frac{5}{6}}$, бо ${\displaystyle {\left(\frac{5}{6}\right)}^2=}$${\displaystyle \frac{25}{36}}$;

г) ${\displaystyle \sqrt{\frac{4}{49}}=}$${\displaystyle \frac{2}{7}}$, бо ${\displaystyle {\left(\frac{2}{7}\right)}^2=}$${\displaystyle \frac{4}{49}}$;

ґ) ${\displaystyle 16:\sqrt{16}=}$${\displaystyle 16:4=}$${\displaystyle 4}$;

д) ${\displaystyle 25:\sqrt{25}=}$${\displaystyle 25:5=}$${\displaystyle 5}$;

е) ${\displaystyle 90:\sqrt{81}=}$${\displaystyle 90:9=}$${\displaystyle 10}$.