\[\boxed{\text{1175.\ }\text{еуроки}\text{-}\text{ответы}\text{\ }\text{на}\text{\ }\text{пятёрку}}\]
\[\textbf{а)}\frac{1}{81} = 3^{- 4}\]
\[\frac{1}{27} = 3^{- 3}\]
\[\frac{1}{9} = 3^{- 2}\]
\[\frac{1}{3} = 3^{- 1}\]
\[1 = 3^{0}\]
\[3 = 3^{1}\]
\[9 = 3^{2}\]
\[27 = 3^{3}\]
\[81 = 3^{4}\]
\[\textbf{б)}\ 100 = 10²\]
\[10 = 10^{1}\]
\[1 = 10^{0}\]
\[0,1 = 10^{- 1}\]
\[0,01 = 10^{- 2}\]
\[0,001 = 10^{- 3}\]
\[0,0001 = 10^{- 4}\]