优优班--学霸训练营 > 题目详情
  • 设数列\(\{a_{n}\}\)满足:\(a_{1}=1\),\({a}_{n+1}={a}_{n}+ \dfrac{1}{{a}_{n}} (n∈N*)\).

    \((\)Ⅰ\()\)证明:\(a_{n} < a_{n+1}(n∈N*)\);

    \((\)Ⅱ\()\)证明:\( \sqrt{2n-1}\leqslant {a}_{n}\leqslant \sqrt{3n-2} (n∈N*)\);

    \((\)Ⅲ\()\)求正整数\(m\),使\(|a_{2017}-m|\)最小.

    【考点】放缩法,数列的递推关系
    【分析】请登陆后查看
    【解答】请登陆后查看
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