Ответ:

  1. \(\sqrt{121\cdot64}=11\cdot8=88\).
  2. \(\sqrt{0.36\cdot49}=0.6\cdot7=4.2\).
  3. \(\sqrt{12\frac{1}{4}}=\sqrt{\frac{49}{4}}=\frac{7}{2}=3.5\).
  4. \(\sqrt{10\frac{9}{16}}=\sqrt{\frac{169}{16}}=\frac{13}{4}=3.25\).
  5. \(\sqrt{0.04\cdot81\cdot25}=0.2\cdot9\cdot5=9\).
  6. \(\sqrt{0.09\cdot16\cdot0.04}=0.3\cdot4\cdot0.2=0.24\).
  7. \(\sqrt{1\frac{7}{9}\cdot\frac{4}{25}}=\sqrt{\frac{16}{9}\cdot\frac{4}{25}}=\sqrt{\frac{64}{225}}=\frac{8}{15}\).
  8. \(\sqrt{\frac{121}{144}\cdot2\frac{1}{4}}=\frac{11}{12}\cdot\frac{3}{2}=\frac{11}{8}\).

Ответ: 1) 88; 2) 4,2; 3) 3,5; 4) 3,25; 5) 9; 6) 0,24; 7) \(\frac{8}{15}\); 8) \(\frac{11}{8}\).