Ответ:

  1. \(a^{1/3}a^{1/6}=a^{1/2}=\sqrt{0.09}=0.3\);
  2. \(b^{1/2-1/6}=b^{1/3}=3\);
  3. \(b^{1/2+2/3-1/6}=b=1.3\);
  4. \(a^{1/3+1/4+5/12}=a=2.7\).

Ответ: 0.3; 3; 1.3; 2.7.