Q. 11

    1. \sqrt[3]{216} 216^\frac{1}{3} (6^3)^\frac{1}{3} 6

    2. 16^\frac{3}{2} - 16^0 (4^2)^\frac{3}{2} - 1 4^3 - 1 63

  2. (\frac{3a^2b}{12ab^4})^{-2} \Rightarrow (\frac{12ab^4}{3a^2b})^{2} \Rightarrow (\frac{4ab^4}{a^2b})^{2} \Rightarrow ({4a^{1-2}b^3})^{2} \Rightarrow {16a^{-2}b^6} \Rightarrow \frac{16b^6}{a^{2}}