3.28. Төмендегі өрнектердің мәнін табыңдар: 1) \(\sqrt{625}\); 2) \(\sqrt{\sqrt{0,1296}}\); 3) \(6\left(\sqrt{\frac{2}{3}}\right)^4\); 4) \(2\left(-\sqrt{\frac{7}{12}}\right)^2\).

1. \(\sqrt{625}=25\).
2. \(\sqrt{\sqrt{0,1296}}=\sqrt{0,36}=0,6\).
3. \(6\left(\sqrt{\frac{2}{3}}\right)^4=6\left(\frac{2}{3}\right)^2=6\cdot\frac{4}{9}=\frac{8}{3}\).
4. \(2\left(-\sqrt{\frac{7}{12}}\right)^2=2\cdot\frac{7}{12}=\frac{7}{6}\).

Жауабы: 1) 25; 2) 0,6; 3) \(\frac{8}{3}\); 4) \(\frac{7}{6}\).