\[\sqrt[3]{0,996} < \sqrt[4]{1,04};\ \ \ \]
\[так\ как\ \sqrt[3]{0,996} = \sqrt[12]{{0,996}^{4}};\ \ \]
\[\sqrt[4]{1,04} = \sqrt[12]{{1,04}^{3}};\]
\[{0,996}^{4} < {1,04}^{3}\text{.\ \ }\]