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主持人郭要红(芜湖市安徽师范大学数学计算机科学学院邮编:241000)(注:本栏目稿件及奖金请直接寄给主持人.E-mail:guoyaohong1108@163.com)题证明或否定:1+1nn+21是(严格)递减数列.(注:供题人对第一位正确解答者给予奖金30元)有奖解题擂台(85)$浙江湖州市双林中学@李建潮!邮编3
Moderator Guo Yaohong (College of Mathematics and Computer Science, Anhui Normal University, Wuhu City, China Post Code: 241000) (Note: Please send this item and bonus directly to the moderator. E-mail: guoyaohong1108@163.com) Proof or Deny: 1 +1nn+21 is (strictly) decreasing series. (Note: For the right person to give the first correct answer to give a bonus of 30 yuan) There is a prize solution to solve the problem (85) $ Huzhou Zhejiang Shuanglin Middle School @ Li Jianchao! Zip 3