\[\boxed{\text{1193.\ }\text{еуроки}\text{-}\text{ответы}\text{\ }\text{на}\text{\ }\text{пятёрку}}\]
\[\textbf{а)}\ 3^{- 4} \cdot 3^{6} = 3^{- 4 + 6} = 3² = 9\]
\[\textbf{б)}\ 2^{4} \cdot 2^{- 3} = 2^{4 + ( - 3)} = 2^{1} = 2\]
\[\textbf{в)}\ 10^{8} \cdot 10^{- 5} \cdot 10^{- 6} =\]
\[= 10^{8 + ( - 5) + ( - 6)} = 10^{- 3} = 0,001\]
\[\textbf{г)}\ 2^{10}\ :2^{12} = 2^{10 - 12} =\]
\[= 2^{- 2} = \frac{1}{2^{2}} = \frac{1}{4} = 0,25\]
\[\textbf{д)}\ 5^{- 3}\ :5^{- 3} = 5^{- 3 - ( - 3)} =\]
\[= 5^{0} = 1\]
\[\textbf{е)}\ 3^{- 4}\ :3 = 3^{- 4 - 1} = 3^{- 5} =\]
\[= \frac{1}{3^{5}} = \frac{1}{243}\]
\[\textbf{ж)}\ \left( 2^{- 4} \right)^{- 1} = 2^{- 4 \cdot ( - 1)} =\]
\[= 2^{4} = 16\]
\[\textbf{з)}\ \left( 5^{2} \right)^{- 2} \cdot 5³ = 5^{2 \cdot ( - 2)} \cdot 5³ =\]
\[= 5^{- 4 + 3} = 5^{- 1} = \frac{1}{5} = 0,2\]
\[\textbf{и)}\ 3^{- 4} \cdot \left( 3^{- 2} \right)^{- 4} =\]
\[= 3^{- 4} \cdot 3^{- 2 \cdot ( - 4)} = 3^{- 4} \cdot 3^{8} =\]
\[= 3^{- 4 + 8} = 3^{4} = 81\]