1 . 汉诺塔(Hanoi)游戏是源于印度古老传说的益智游戏,该游戏是一块铜板装置上,有三根杆(编号A、B、C),在A杆自下而上、由大到小按顺序放置若干个金盘(如下图).游戏的目标:把A杆上的金盘全部移到C杆上,并保持原有顺序叠好.操作规则如下:每次只能移动一个盘子,并且在移动过程中三根杆上都始终保持大盘在下,小盘在上,操作过程中盘子可以置于A、B、C任一杆上.记n个金盘从A杆移动到C杆需要的最少移动次数为
.
,
,
;
(2)写出
与
的关系,并求出
.
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
(2)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7230de53663c75658c58bbf206a0085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085b7bbe595f4064d891f1295a985958.png)
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2 . 如果以
,
(
),试写出数列
的前3项,并猜想出它的一个通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffeabbdcc5030b0d6895ff833f4c3bcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/570cfb5615bae1f3126832b2009016bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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3 . 已知数列
满足
,
.
(1)求
;
(2)设
,求证:数列
是等比数列;
(3)求数列
的前n项和
.
![](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/daf6f95519efb9f1f2deac66eef1fbd2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe61d313eeca8ba47478a9de40540db8.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb3985a508c39462365428b00bc592d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(3)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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解题方法
4 . 已知数列
满足,
,
,令
.
(1)写出
,
,并求出数列
的通项公式;
(2)记
,求
的前10项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9a1dd2dd7eb69fa85e8880cb268b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/314501f06c7e4bf3112fe41ecac7be68.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d14c385216890294be84dc960ebc7049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
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2020高三·全国·专题练习
5 . 已知数列
满足
,且
.
(1)求
;
(2)证明数列
是等差数列,并求
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0be8b03a34f7ad7f9c2f970c1b6b837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5962044fd1e5210445639c028e2b59f5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe61d313eeca8ba47478a9de40540db8.png)
(2)证明数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf3da897eb73b729f66bb0d700775c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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2022-08-21更新
|
703次组卷
|
6卷引用:安徽省安庆市第一中学2023-2024学年高二上学期第二次阶段性学业质量检测数学试题
安徽省安庆市第一中学2023-2024学年高二上学期第二次阶段性学业质量检测数学试题(已下线)专题6.2 等差数列及其前n项和-2021年高考数学(理)一轮复习-题型全归纳与高效训练突破(已下线)专题6.2 等差数列及其前n项和-2021年高考数学(文)一轮复习-题型全归纳与高效训练突破江苏省苏州市吴江汾湖高级中学2020-2021学年高二上学期10月月考数学试题(已下线)第40讲 数列的概念与等差数列湖南省长沙市长郡中学2023-2024学年高二寒假作业检测数学试卷
10-11高二下·湖北宜昌·期中
名校
6 . 已知数列
的前
项和为
,其中
且
.
(1)试求:
,
的值,并猜想数列
的通项公式
;
(2)用数学归纳法加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.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/03fd44fc12f3496d3a9d086d8bcf93f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1850b51a3463db08b5bca7cf467abeb2.png)
(1)试求:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)用数学归纳法加以证明.
您最近一年使用:0次
2022-07-15更新
|
554次组卷
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11卷引用:安徽省合肥市肥东县第二中学2020-2021学年高二下学期期中理科数学试题
安徽省合肥市肥东县第二中学2020-2021学年高二下学期期中理科数学试题(已下线)2010-2011学年湖北省长阳一中高二第二学期期中考试理科数学卷(已下线)2011-2012学年吉林长春外国语学校高二下期中理科数学试卷山西省太原市第五中学2020-2021学年高二下学期4月阶段性检测数学(理)试题广西百色市2021-2022学年高二下学期期末教学质量调研测试数学(理)试题(已下线)数学归纳法(已下线)第4章 数列(A卷·知识通关练) (1)(已下线)第四章 数列(A卷·知识通关练) (4)(已下线)4.4 数学归纳法(2)1.5 数学归纳法7种常见考法归类(1)(已下线)专题05 数列在高中数学其他模块的应用(九大题型+过关检测专训)-2023-2024学年高二数学《重难点题型·高分突破》(人教A版2019选择性必修第二册)
7 . 已知数列
中,
,
,设
.
(1)求
,
,
;
(2)判断数列
是不是等比数列,并说明理由;
(3)求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4af77475b912dcdcd55b5bf3c4397cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/645632993919a478110143f27480d185.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57483e04fd1840c87ac5325157149877.png)
(2)判断数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
(3)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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2022-03-23更新
|
1178次组卷
|
8卷引用: 安徽省安庆市第七中学2021-2022学年高二下学期期中考试数学试题
8 . 已知数列
满足,
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cac9dc3dd3b74ede00849cb406c0de5.png)
.
(1)设
,求数列
前三项的值及数列
的通项公式;
(2)设
,求
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a75739be7640de2ab1c3e191b9857a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cac9dc3dd3b74ede00849cb406c0de5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132e9579e58d8d5225e2340e1f43adf1.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58bed7b8134a626d08644cd871bbecd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/326be0620b9aeb2caeb634aed6646c39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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2022-01-26更新
|
523次组卷
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3卷引用:安徽省合肥市双凤高级中学2022届高三二模文科数学试题
安徽省合肥市双凤高级中学2022届高三二模文科数学试题浙江省湖州市2021-2022学年高三上学期期末数学试题(已下线)专题19 数列解答题20题-备战2022年高考数学冲刺横向强化精练精讲(新高考专用)
名校
解题方法
9 . 已知数列
满足
,
.
(1)求
,
;
(2)设
,求证:数列
是等比数列,并求其通项公式;
(3)已知
,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/41913e6c1df7a7b899f9d06692fd8848.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb3985a508c39462365428b00bc592d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8fef5ca86c3787b25607b39ed81f8f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b08eecb0065cb86128983d1a924b3666.png)
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2021-11-04更新
|
903次组卷
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8卷引用:安徽省宿州市泗县第一中学2020-2021学年高二上学期开学考试数学试题
安徽省宿州市泗县第一中学2020-2021学年高二上学期开学考试数学试题苏教版(2019) 选修第一册 突围者 第4章 第三节 课时1 等比数列的概念、等比数列的通项公式人教B版(2019) 选修第三册 突围者 第五章 第三节 课时1 等比数列北师大版(2019) 选修第二册 突围者 第一章 第三节 等比数列 课时1 等比数列(已下线)第4章 数列(基础卷)-2021-2022学年高二数学新教材单元双测卷(苏教版2019选择性必修第一册)(已下线)第4章 数列单元检测卷-2021-2022学年高二数学尖子生同步培优题典(苏教版2019选择性必修第一册)(已下线)第4章 数列(章末测试提高卷)-2021-2022学年高二数学同步单元测试定心卷(苏教版2019选择性必修第一册)2023版 苏教版(2019) 选修第一册 突围者 第4章 第三节 课时1 等比数列的概念、等比数列的通项公式
解题方法
10 . 已知
,且
,
.
(1)求函数
的表达式;
(2)已知数列
的项满足
,试求
,
,
,
并猜想数列
的通项公式(不需要证明).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df8f8120e0073e5e33cc70863352fe69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e4b7c14e3626a88c045bd92c36bf8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6266a5b47e313651b98ca48c91a754fc.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f46b4f6797c1b96fc2e73ff1572dee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
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