名校
解题方法
1 . 已知数列
的前
项和为
,且
.
(1)求
的通项公式;
(2)求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ee53ebc6c4d311b7a0277e9b05258b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/846fa57d92d6ad44d6a0cafad1e71ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
名校
解题方法
2 . 已知数列
满足:
,若对任意的
,都有
恒成立,则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2e13b2b3efa4c12979e07ccce87ca2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9239b86dece8c37e729e1f59b71ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-06-14更新
|
320次组卷
|
2卷引用:上海市建平中学2022-2023学年高一下学期6月月考数学试题
3 . 若数列
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5eb9b8f893dd71876349ad40724550.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa728e297d79590d3686769c7a3fd7fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5eb9b8f893dd71876349ad40724550.png)
您最近一年使用:0次
名校
解题方法
4 . 已知
,则在数列
的前40项中最大项是第__________ 项.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2226206118712d466837d11175cac19b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
名校
解题方法
5 . 在数列
中,
.记
的前
项和为
,且满足
若对任意
,都有
,则首项
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ced72f99d3e93cec09c40f24089b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b6792a8d3b0dd2058b8d026267214dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a5945ce5c2114af8c18718ca8dc899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
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名校
6 . 已知等比数列
中
,若
成等差数列,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e190fa9d30fe745b04fdd644d30719c9.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9645bd4d2002993b90ec6d48f9c04f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d8cf1b453e25c5f71a0510ed41c0b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e190fa9d30fe745b04fdd644d30719c9.png)
您最近一年使用:0次
2023-06-07更新
|
887次组卷
|
4卷引用:上海市闵行区七宝中学2024届高三下学期3月月考数学试题
名校
解题方法
7 . 已知数列
满足:对任意的
,总存在
,使得
,则称
为“回旋数列”.以下结论中正确的个数是( )
①若
,则
为“回旋数列”;
②设
为等比数列,且公比q为有理数,则
为“回旋数列”;
③设
为等差数列,当
,
时,若
为“回旋数列”,则
;
④若
为“回旋数列”,则对任意
,总存在
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a70b95c53fb6655721e2a8c61f5c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f8494594299d0ecce6e1e52151f402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3693c7c942afef5517a3c18997c878df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/542ed562aec60ccb50d3b7a478dff2aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
②设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
③设
![](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/d2d8bbb4a09e0ac86bbae46222a90841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60acf58bad78854a0db851c42f739543.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a70b95c53fb6655721e2a8c61f5c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f8494594299d0ecce6e1e52151f402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de197a4e711c2f391eca67ad8807e088.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2023-05-26更新
|
980次组卷
|
7卷引用:上海市延安中学2024届高三上学期9月月考数学试题
上海市延安中学2024届高三上学期9月月考数学试题上海市延安中学2024届高三上学期开学考数学试题上海市鲁迅中学2024届高三上学期期中数学试题北京市人大附中2023届高三三模数学试题(已下线)重难点突破01 数列的综合应用 (十三大题型)-1(已下线)专题02 结论探索型【练】【北京版】(已下线)黄金卷06
名校
8 . 已知数列
、
满足
,
,
,
,且
,
.
(1)求证:
是等比数列;
(2)若
是递增数列,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383538d956b967e16d2cdcb9ea805cef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be46c3315106e87a52c7c9c44f493ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39106d1bdd098fc71c68b9c606891eeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecdb00c5e8e49704147abb7f69167cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87ea014220aa658c8baa6e1f43e686a2.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5344eadd4711db34e3f935aedd5fb270.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2023-05-25更新
|
1272次组卷
|
6卷引用:上海市延安中学2024届高三上学期9月月考数学试题
上海市延安中学2024届高三上学期9月月考数学试题上海市延安中学2024届高三上学期开学考数学试题江苏省盐城市2023届高三三模数学试题(已下线)专题8 等比数列的单调性 微点2 等比数列单调性综合训练(已下线)第4课时 课后 等比数列的概念与通项公式(已下线)第03讲 等比数列及其前n项和(九大题型)(讲义)-1
名校
9 . 斐波那契数列
满足:
.该数列与如图所示的美丽曲线有深刻联系,设
,给出以下三个命题:
①
;②
;③
.其中真命题的是________________ (填上所有正确答案)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6af3ff270ecbfe2433981bedc8ddda7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9ae907001d5f3c857fd940debd92b6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/23/08a9b282-d2d0-46be-ae46-ea0ce5ddae98.png?resizew=186)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4798b5053190b7f0d571b4248590a41e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44571b15179ffaa2eb54babb17deee61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d2bfcfbc0cecc71382c5599da6acf0.png)
您最近一年使用:0次
2023-05-23更新
|
525次组卷
|
7卷引用:上海交通大学附属中学2021-2022学年高一下学期5月线上月考数学试题
上海交通大学附属中学2021-2022学年高一下学期5月线上月考数学试题(已下线)专题1 斐波那契数列(已下线)第01讲 数列的概念与简单表示法(练)2023届四川省高考专家联测卷(1)数学(理)试题(已下线)第三篇 数列、排列与组合 专题2 多边形数、伯努利数、斐波那契数、洛卡斯数、明安图数与卡塔兰数 微点5 斐波那契数(二)(已下线)【一题多变】斐波那契数列 归纳裂项(已下线)专题04 数列(5)
解题方法
10 . 已知数列的前
项和
.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f39845be2258d369b340bf84fd50ca0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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