Gazeta matematică 1998: Difference between revisions
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'''[[23964]] (Marin Bancoș)''' | '''[[23964]] (Marin Bancoș)''' | ||
''Să de demonstreze inegalitatea <math display="block"> \sum_{i=2}^{n} \sqrt[i]{\left(i!\right)2} < \frac{2n^3+9n^2+13n-24}{24} .</math>'' | ''Să de demonstreze inegalitatea <math display="block"> \sum_{i=2}^{n} \sqrt[i]{\left(i!\right)^2} < \frac{2n^3+9n^2+13n-24}{24} .</math>'' | ||
![{\displaystyle \sum _{i=2}^{n}{\sqrt[{i}]{\left(i!\right)^{2}}}<{\frac {2n^{3}+9n^{2}+13n-24}{24}}.}](https://wikimedia.org/api/rest_v1/media/math/render/svg/1947af93e7b21641df1788f97dea330bafe0ac0a)