550 Вправа 550Алгебра 8 клас Тарасенкова 2025 · § 13 · стор. 160

550. Обчисліть:

1) ${\displaystyle \sqrt{12\frac{1}{4}}=}$${\displaystyle \sqrt{\frac{49}{4}}=}$${\displaystyle \frac{\sqrt{49}}{\sqrt{4}}=}$${\displaystyle \frac{7}{2}=}$${\displaystyle 3,5}$;

2) ${\displaystyle \sqrt{5\frac{4}{9}}=}$${\displaystyle \sqrt{\frac{49}{9}}=}$${\displaystyle \frac{\sqrt{49}}{\sqrt{9}}=}$${\displaystyle \frac{7}{3}=}$${\displaystyle 2\frac{1}{3}}$;

3) ${\displaystyle \sqrt{1\frac{32}{49}}=}$${\displaystyle \sqrt{\frac{81}{49}}=}$${\displaystyle \frac{\sqrt{81}}{\sqrt{49}}=}$${\displaystyle \frac{9}{7}=}$${\displaystyle 1\frac{2}{7}}$;

4) ${\displaystyle \sqrt{7\frac{1}{9}}=}$${\displaystyle \sqrt{\frac{64}{9}}=}$${\displaystyle \frac{\sqrt{64}}{\sqrt{9}}=}$${\displaystyle \frac{8}{3}=}$${\displaystyle 2\frac{2}{3}}$.