1 . 已知数列
中,
,当
时,
,记
.
(1)求数列
的通项公式;
(2)设数列
的前n项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cefeddf71dca8ae824328df3f0e5e1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc06122d220dccaffc64bf0eaeddc3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5653b60d16ec4e653518f0562680250.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30136113176ba7fe660e998d0873157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e7d6bcb2f499cf28d5d79cf6d925f39.png)
您最近一年使用:0次
2022-12-02更新
|
1286次组卷
|
6卷引用:湖南省郴州市安仁县第一中学2021-2022学年高二数学模拟试题
湖南省郴州市安仁县第一中学2021-2022学年高二数学模拟试题(已下线)山东省青岛第二中学2022-2023学年高三上学期1月期末测试数学试题变式题17-22(已下线)专题06 数列求和-2022-2023学年高二数学新教材同步配套教学讲义(苏教版2019选择性必修第一册)(已下线)专题训练:数列综合运用大题-【题型分类归纳】2022-2023学年高二数学同步讲与练(人教A版2019选择性必修第二册)(已下线)拓展三:数列与不等式 -【帮课堂】2022-2023学年高二数学同步精品讲义(人教A版2019选择性必修第二册)(已下线)4.2 等差数列(练习)-高二数学同步精品课堂(苏教版2019选择性必修第一册)
名校
2 . 已知
,抛物线
与
轴正半轴相交于点
.设
为该拋物线在点
处的切线在
轴上的截距.
(1)求数列
的通项公式;
(2)设
, 求证:
(
且
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b1310ac23301a3244c5be58b4874f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98140638c614f73c82e680469948c700.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f036c90d708ef3bfaea4f28ddaa33ca2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
您最近一年使用:0次
2022-10-06更新
|
1532次组卷
|
4卷引用:湖南省长沙市雅礼中学2022-2023学年高三上学期月考(二)数学试题
名校
3 . 已知数列
的前n项和为
,
,
.
(1)求证
为等比数列;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6951544682f2ca7b60da7a0e1bc0ca.png)
(1)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f8e73f57902d2fc5855afbf7b2437e.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105de1b20942840a12712c6795a05e1b.png)
您最近一年使用:0次
2020-12-08更新
|
1384次组卷
|
5卷引用:湖南省衡阳市第八中学2023-2024学年高三上学期第二次阶段性考试数学试题
湖南省衡阳市第八中学2023-2024学年高三上学期第二次阶段性考试数学试题陕西省咸阳市高新一中2020-2021学年高三上学期第四次考试理科数学试题(A卷)四川省成都市第七中学2023-2024学年高二下学期3月阶段性检测数学试题云南省昆明市禄劝彝族苗族自治县第一中学2023-2024学年高二下学期3月阶段性检测数学试题(已下线)专题16 数列放缩证明不等式必刷100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)
4 . 数列
满足
,
,
,
.
(1)求
,
及
(用
表示);
(2)设
,求证:
;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbfe9cbf54b82384301dbbf69289c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/502499c83471a18306bc0e021a5017a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21659513ebcf7a1be6f3f7d8f733c733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/245634836d83f65fc1cc073a8d758aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b007ca14c228e163ee280a921c4df0.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/119070b66392cbc0e9c70b7785a74b8f.png)
您最近一年使用:0次
5 . 已知数列
满足
,
,
(1)求
;
(2)若数列
满足
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/954479fb7a5d2f9fa3ed75a733d45785.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd705b936f0417aa140f274e195f56b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cdb3a8bacf7664edc033997ba2229f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d74b373135978716d3327f38e751d468.png)
您最近一年使用:0次
2020-07-16更新
|
1093次组卷
|
3卷引用:湖南师范大学附属中学2020-2021学年高二下学期第二次月考数学试题
湖南师范大学附属中学2020-2021学年高二下学期第二次月考数学试题浙江省宁波市镇海中学2020届高三下学期高考适应性考试数学试题(已下线)专题16 数列放缩证明不等式必刷100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)
名校
6 . 设数列
的前n项和为
.满足
,且
,设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3219353c9f4d45d0a1562102a4eb9fb8.png)
(1)求数列
的通项公式;
(2)证明:对一切正整数n,有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8a4e5523dffbdc4f0fa2213f89ce771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3219353c9f4d45d0a1562102a4eb9fb8.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)证明:对一切正整数n,有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ab5128a0393c0a1dce8af96f24de54f.png)
您最近一年使用:0次
2019-05-20更新
|
634次组卷
|
4卷引用:湖南师范大学附属中学2018-2019学年高三下学期第六次月考数学(理)试题
7 . 设
是函数
的零点,
.
(Ⅰ)求证:
,且
;
(Ⅱ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32d8aa1f0fcbd469988f7e577145e80.png)
![](https://img.xkw.com/dksih/QBM/2012/3/8/1570792000774144/1570792006737920/STEM/545ed266801d46958bb8077f5e31082d.png?resizew=137)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6644ec936d0d6880ac41a2c4513f6f0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a4dfcac2015c6fb553b59d6b6a5bc58.png)
(Ⅱ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bd4c334a20ba6a3684c3a3ce4a905e7.png)
您最近一年使用:0次
10-11高三·湖南娄底·阶段练习
8 . 对于函数f(x),若存在x0∈R,使
成立,则称
为f(x)的不动点.如果函数
有且仅有两个不动点0,2,且
.
(1)求函数f(x)的单调区间;
(2)已知数列{an}各项不为零且不为1,满足
,求证:
;
(3)设
,Tn为数列{bn}的前n项和,求证:T2012﹣1<
<T2011.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73bc955d158efde0bdd62d14a60a65e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cfc729ea8e35605ac3753b09aebd06e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207f17a8e60b2fefa28feecc771ccdf5.png)
(1)求函数f(x)的单调区间;
(2)已知数列{an}各项不为零且不为1,满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a4c6774f736494e46bd813b0d2b5ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb3ef100e39df81332283daf6c809796.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e7c168f242cda629b4327bdc639cb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b1f6b11b30829b74bbc8262cffc81c.png)
您最近一年使用:0次