1 .
,求所有的
,使得
中有无穷多项为正整数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad039ab9ca99b3d62b798884e8988b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/629507dcfdeb6866da428c4f45e2b21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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解题方法
2 . 数列
满足
且
,
,
,
构成等差数列.
(1)试求出所有三元实数组(α,β,γ),使得
为等比数列.
(2)若
,求
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f390f47fa5678c9a165c50fb9dec58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be536a2097ded867adac5edebb79906b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e6820c50fa2aa589de5331d7d5f950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13739ca823d61005798cc3298400c6b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad28237c0f9ca65341101d9d7e73e73e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee766a75ae9ee290e403b42b3569db6.png)
(1)试求出所有三元实数组(α,β,γ),使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee766a75ae9ee290e403b42b3569db6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4623bc660145c6ff98af7b1753d5357a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee766a75ae9ee290e403b42b3569db6.png)
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3 . 设数列
满足
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2577a0871cb3b018eb5e2840da1d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d5780c707bbf8fc91265df5f2093cb.png)
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4 . 已知
.证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1a4f6aed102bf6a4ac8b0f7dc63228.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/152b9780c93f0157f48c59a946354d37.png)
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5 . 求所有的函数
,满足
,且对于所有整数
,有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32cabeba8b8adf0e787829153a8cf6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8a114af9a47b5323510da90975657a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e647c14561826ba9e396acc5a3792c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98818bef6625dfef58baf9c0730cb6f4.png)
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6 . 已知数列
满足
,
,
.
(1)若对任意的正整数
,有
,求实数
的取值范围;
(2)若
,且对任意大于1的正整数
,有
恒成立,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fab51121848ce166035ceab6f4e00b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31d0b399e3826e2721d683a357fe5dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(1)若对任意的正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2798e1dcab1f7f0fe3b8a94b3cd6a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e006164b7245ccef533e99ac5c6b994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaacfaef44a654c0a1c283ef03fc0550.png)
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7 . 设m为整数,
.整数数列
满足:
不全为零,且对任意正整数n,均有
.证明:若存在整数r、s(r>s≥2)使得
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a4b09c6c1326f1977d632cdfb04883d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ddd6fc72d06ab0baec942bb06269263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0158862238e250d2a2598b7d4ecd148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46cee89e1b6c275225aa4486a553d19a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b01112646fd90af0ffc39267c1eb4db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27dbc05c9c0cd937925dd3e73f7a0963.png)
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名校
解题方法
8 . 设
是正数数列,
,且
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9c167dc2de7663c031fec059996f17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69d4a165709c462216d1eb48ee9cceae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e18c54a4337b5987756f8bbd656638c.png)
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13-14高二下·广东湛江·期末
名校
解题方法
9 . 设正数数列
为等比数列,
,记
.
(1)求
和
;
(2)证明: 对任意的![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5b0aafc603ba02b6702e785b00a5013.png)
,有
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca7505a503be4b0eb7f8ef72fd0dfc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7344533c2ce86bc22a7b896c22faa68.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
(2)证明: 对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5b0aafc603ba02b6702e785b00a5013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891d3c5fdf4d8eb207202a0d14e076cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/253c98ab3d4832b35befadc3b736539f.png)
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10 . 已知数列
中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf652b134a4f6a0fbad8dc50535294c6.png)
(Ⅰ)求
的通项公式;
(Ⅱ)若数列
中
,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1a851bcd676be9624f13acf70ce7eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf652b134a4f6a0fbad8dc50535294c6.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(Ⅱ)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad870661fe92f49c7973991a7cb3f9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1a851bcd676be9624f13acf70ce7eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42a37451f6475144de46d27f7d56c04.png)
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2016-11-30更新
|
2279次组卷
|
7卷引用:2019年河南省郑州市高二数学选拔赛
2019年河南省郑州市高二数学选拔赛2007年普通高等学校招生全国统一考试理科数学卷(山西)浙江省宁波市余姚中学2018-2019学年高二下学期3月月考数学试题人教B版(2019) 选修第三册 一蹴而就 高考模拟测试卷2007 年普通高等学校招生考试数学(理)试题(大纲卷 Ⅰ)(已下线)专题1 数学归纳法及其变种 微点1 数学归纳法(已下线)专题15 数列不等式的证明 微点2 数学归纳法证明数列不等式