520° Вправа 520Алгебра 8 клас Тарасенкова 2025 · § 13 · стор. 156

520. Обчисліть:

1) ${\displaystyle \sqrt{\frac{1}{9}}=}$${\displaystyle \frac{\sqrt{1}}{\sqrt{9}}=}$${\displaystyle \frac{1}{3}}$;

2) ${\displaystyle \sqrt{\frac{1}{25}}=}$${\displaystyle \frac{\sqrt{1}}{\sqrt{25}}=}$${\displaystyle \frac{1}{5}}$;

3) ${\displaystyle \sqrt{\frac{25}{49}}=}$${\displaystyle \frac{\sqrt{25}}{\sqrt{49}}=}$${\displaystyle \frac{5}{7}}$;

4) ${\displaystyle \sqrt{\frac{36}{100}}=}$${\displaystyle \frac{\sqrt{36}}{\sqrt{100}}=}$${\displaystyle \frac{6}{10}=}$${\displaystyle 0,6}$;

5) ${\displaystyle \sqrt{\frac{25}{64}}=}$${\displaystyle \frac{\sqrt{25}}{\sqrt{64}}=}$${\displaystyle \frac{5}{8}}$;

6) ${\displaystyle \sqrt{\frac{81}{100}}=}$${\displaystyle \frac{\sqrt{81}}{\sqrt{100}}=}$${\displaystyle \frac{9}{10}=}$${\displaystyle 0,9}$.