731 Вправа 731Алгебра 8 клас Бевз 2025 · § 15 · стор. 143

731. Обчисли значення виразу.

а) ${\displaystyle \sqrt{\frac{25}{144}}=}$${\displaystyle \frac{\sqrt{25}}{\sqrt{144}}=}$${\displaystyle \frac{5}{12}}$;

б) ${\displaystyle \sqrt{\frac{0,04}{0,49}}=}$${\displaystyle \frac{\sqrt{0,04}}{\sqrt{0,49}}=}$${\displaystyle \frac{0,2}{0,7}=}$${\displaystyle \frac{2}{7}}$;

в) ${\displaystyle \sqrt{2\frac{1}{4}}=}$${\displaystyle \sqrt{\frac{9}{4}}=}$${\displaystyle \frac{\sqrt{9}}{\sqrt{4}}=}$${\displaystyle \frac{3}{2}=}$${\displaystyle 1\frac{1}{2}}$;

г) ${\displaystyle \sqrt{11\frac{1}{9}}=}$${\displaystyle \sqrt{\frac{100}{9}}=}$${\displaystyle \frac{\sqrt{100}}{\sqrt{9}}=}$${\displaystyle \frac{10}{3}=}$${\displaystyle 3\frac{1}{3}}$.