• 2022-06-18
    求函数 [tex=15.5x1.571]r2HGbcg2a+5qxssQd4Y1dnpTdJUr0cACLFUron/VJzcvgO72aPDTd/AbnpbX5qfClg2/r7gEVq7ui6s1oZ53nnEL6kaW/qCl8Z8/a/7lj5n+lz+qJp6WbgNAqaDCJa+W[/tex]的极值.