\[\sqrt[3]{0,997} < \sqrt[4]{1,001};\ \ \ \]
\[так\ как\ \sqrt[3]{0,997} = \sqrt[12]{{0,997}^{4}};\ \ \ \]
\[\sqrt[4]{1,001} = \sqrt[12]{{1,001}^{3}};\]
\[{0,997}^{4} < {1,001}^{3}.\]