1 . 已知等比数列
的公比
,且
,
是
,
的等差中项.数列
的通项公式
,
.
(Ⅰ)求数列
的通项公式;
(Ⅱ)证明:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda6dc559d07bc22c9a0ed1e3a6d01d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d9b03230cbcdbfb2f70cab2a306b717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ae2c13c6e6d0fd01e55c72129f337b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77e027201d66112a3b982edb03ba774f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(Ⅰ)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(Ⅱ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d8d6953606f7c281bf587197ed6c3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
您最近一年使用:0次
2020-09-09更新
|
840次组卷
|
10卷引用:专题07 少丢分题目强化卷(第二篇)-备战2021年新高考数学分层强化训练(北京专版)
(已下线)专题07 少丢分题目强化卷(第二篇)-备战2021年新高考数学分层强化训练(北京专版)2020年1月中学生标准学术能力诊断性测试诊断性测试理科数学试卷(已下线)专题7.6 数学归纳法(讲)-2021年新高考数学一轮复习讲练测(已下线)专题7.6 数学归纳法(讲)- 2022年高考数学一轮复习讲练测(新教材新高考)浙江省浙南名校联盟2019-2020学年高三上学期第一次联考数学试题1浙江省浙南名校联盟2019-2020学年高三上学期第一次联考数学试题2中学生标准学术能力诊断性测试2019-2020学年高三1月(一卷)数学(理)试题(已下线)第二章+数列(基础过关)-2020-2021学年高二数学单元测试定心卷(人教版必修5)浙江省2021届高三6月份高考数学仿真模拟试题(5)天津市咸水沽第一中学2023届高考押题卷(二)数学试题
2 . 有限数列
,若满足
,
是项数,则称
满足性质
.
(1)判断数列
和
是否具有性质
,请说明理由.
(2)若
,公比为
的等比数列,项数为10,具有性质
,求
的取值范围.
(3)若
是
的一个排列
都具有性质
,求所有满足条件的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ba157bd84201cd11cc21e1726c21a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(1)判断数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb8a626918e301ec9ac4484cc7926ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba23c40ed941023495acb366c495666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a290d75db0d1cee4aed3b7e25244f465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6378d3d9eafba9094b28a7806493cabc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
您最近一年使用:0次
2020-07-13更新
|
1131次组卷
|
10卷引用:数学-2022年高考押题预测卷02(北京卷)
(已下线)数学-2022年高考押题预测卷02(北京卷)(已下线)重难点01 数列(基本通项求法)-2021年高考数学【热点·重点·难点】专练(上海专用)(已下线)专题09 数列-五年(2017-2021)高考数学真题分项(新高考地区专用)北京市育英学校2022届高三10月月考数学试题(已下线)专题06数列必考题型分类训练-1(已下线)专题17 数列探索型、存在型问题的解法 微点1 数列探索型问题的解法北京市北京师范大学第二附属中学2023-2024学年高二下学期第二次月考数学试题2020年上海市高考数学练习沪教版(2020) 选修第一册 精准辅导 第4章 4.3(1)数列的概念与性质上海市复旦大学附属中学2023-2024学年高二年级6月教学质量调研数学试卷
3 . 已知
为等比数列,其前
项和为
,且满足
,
.
为等差数列,其前
项和为
,如图_____,
的图象经过
两个点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/c88a5421-6a2f-4f15-9c0c-55d5086f479f.png?resizew=436)
(Ⅰ)求
;
(Ⅱ)若存在正整数
,使得
,求
的最小值.从图①,图②,图③中选择一个适当的条件,补充在上面问题中并作答.
![](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/4fa69dde104dcf963e67647e801e0149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15832644c810f25f129a174e686546c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/c88a5421-6a2f-4f15-9c0c-55d5086f479f.png?resizew=436)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(Ⅱ)若存在正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe48849c88c312a8523c984bce566233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
解题方法
4 . 若无穷数列
满足:存在
,对任意的
,都有
(
为常数),则称
具有性质![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb206a74ff344264a946a64e4e8c3d06.png)
(1)若无穷数列
具有性质
,且
,求
的值
(2)若无穷数列
是等差数列,无穷数列
是公比为正数的等比数列,
,
,
,判断
是否具有性质
,并说明理由.
(3)设无穷数列
既具有性质
,又具有性质
,其中
互质,求证:数列
具有性质
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e36bff57bcfa86432b340e25e51d42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018ec9032bdd3bb95b3b6c5f11e3613b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918f40dc666f08ee2c9283ee14c35ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb206a74ff344264a946a64e4e8c3d06.png)
(1)若无穷数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f13d38fa8dc61cc15b24ca37d9ef7cc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f79ae17a7a504d6b0998364c13a9e0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c9ebcaf713a9d2bb692db76ccf3150.png)
(2)若无穷数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e52d55280e664b707f4e9ef4cb1554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928be44c53a39c116c715ab72f2f2d95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cb2db37e079b735acc41ea3035139e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbc163ef99f5698327d92c2096bd2ae.png)
(3)设无穷数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0472160725de0784ca17b9e27b2056f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39ecf7a0c6499fec40f91c1d0746246.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538942b126a3f39d8fb22d9cff86f2cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7971656803a83d57a35ee3fc8e1a2cde.png)
您最近一年使用:0次
5 . 设
为等差数列
的前n项和,
是正项等比数列,且
,
.在①
,②
,③
这三个条件中任选一个,回答下列问题:
(1)求数列
和
的通项公式;
(2)如果
(m,
),写出m,n的关系式
,并求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](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/ebaf2a2590bb84d646957f913d78f6dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15182ccfafa7a2e4023e5402b2b60a7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/769fe52ac96348d3b12d23d06d702595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d157c06683dc177db4476074c17e3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae2e6956e0073cef684fef6a16bead0a.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c8947e097f55291a62e2930dd595ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97769855336d73371930df1f187875e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ddd0f52c847c0241344de8d30fd4fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3070782f8defb2abb82362ec8214e09d.png)
您最近一年使用:0次
2020-05-05更新
|
343次组卷
|
4卷引用:专题02 少丢分题目强化卷(第二篇)-备战2021年新高考数学分层强化训练(北京专版)
(已下线)专题02 少丢分题目强化卷(第二篇)-备战2021年新高考数学分层强化训练(北京专版)2020届山东省济宁市嘉祥一中高三第四次质量检测数学试题海南省华侨中学2022届高三11月第三次月考数学试题海南省琼海市嘉积第二中学2021-2022学年高二下学期教学质量监测(期末)数学试题
名校
6 . 给定数列
.对
,该数列前
项
的最小值记为
,后
项
的最大值记为
,令
.
(1)设数列
为2,1,6,3,写出
,
,
的值;
(2)设
是等比数列,公比
,且
,证明:
是等比数列;
(3)设
是公差大于0的等差数列,且
,证明:
是等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9304e71a623c4412188a800046a970d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd7b6f92256833e6b9b849db8d4cca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba10b416ff8ac2e0f12626bacbd0ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e819b87f90651d89fcd258c276294e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851f6c3f42d508d94512d69df452cd3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b0fd5bcec476872b8a331ef4fefa44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc5c895153932c3e827a464664cef90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731b3972448ca3ec043cb8e2c53199de.png)
(1)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31ac1def558351e2e3ed1235c570530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d0252c1b2f7d2a84b5c985d19d547.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d51e5af26c92bc02df6b1e50a2975afc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ca664b1e82da6f50064a76fe118aa80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e28d90a99a2afea0d6c0cf0f898c1447.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e28d90a99a2afea0d6c0cf0f898c1447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47f0ba65d2ea1d528ed95f8d8cd339d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a7170836b85b2aad29b01f1af0e86d2.png)
您最近一年使用:0次
2020-04-29更新
|
510次组卷
|
4卷引用:专题21 数列的综合应用-2020年高考数学母题题源解密(北京专版)
(已下线)专题21 数列的综合应用-2020年高考数学母题题源解密(北京专版)2020届北京市顺义区高三二模数学试题北京市东北师范大学附属中学朝阳学校2021-2022学年高二6月测试数学试题北京交通大学附属中学2020-2021学年高二下学期期末数学试提
7 . 已知等比数列
满足
.
(1)求
的通项公式及前
项和
;
(2)设
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53df261295b140c88ab8e59e20f57a4e.png)
(1)求
![](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)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dddeb84612e0f7be604572990963047d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da72309d2507e2f5e5ed88d8cc08963.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
2020-03-18更新
|
438次组卷
|
7卷引用:北京高二专题04数列(第三部分)
8 . 已知数列
为等比数列,且
,数列
满足
,若
,
.
(1)求数列
的通项公式;
(2)设数列
前
项和为
,若当且仅当
时,
取得最大值,求实数
的取值范围.
![](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/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f6000421c5370e4b89f23be199f388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b72ddd7de598464a37b10f03f67b904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/627e48c5ab76f5d1874c57a40d32d89e.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e20c2688b449d068ff8d90e1bc6c8ed.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/e45cf86650443d1b86c79b1e3edc7e5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-03-07更新
|
347次组卷
|
4卷引用:专题10 少丢分题目强化卷(第二篇)-备战2021年新高考数学分层强化训练(北京专版)
(已下线)专题10 少丢分题目强化卷(第二篇)-备战2021年新高考数学分层强化训练(北京专版)北京市大兴区2019~2020学年度高三第一学期期末检测数学试题(已下线)考点3 等差列的前n项和及其性质 2024届高考数学考点总动员湖北省孝感市汉川二中2020-2021学年高二上学期12月月考数学试题
9 . 已知数列
的首项为2,
为其前
项和,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e203def1aa40f9ff0b16b8f14acd301b.png)
(1)若
,
,
成等差数列,求数列
的通项公式;
(2)设双曲线
的离心率为
,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e203def1aa40f9ff0b16b8f14acd301b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4a13bd477c3e49fee39ee687d6323cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
(2)设双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14fd70cbb2b1ee48e1389df8f100d616.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8f567549e66b339299dbf8369ab5812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1109a808fd0436eccc6e786a03d762eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec273c956ee2af2b9ee5bfecf22d8ed.png)
您最近一年使用:0次
2020-02-01更新
|
971次组卷
|
5卷引用:专题7.18 数列与解析几何的综合-2022届高三数学一轮复习精讲精练
(已下线)专题7.18 数列与解析几何的综合-2022届高三数学一轮复习精讲精练(已下线)专题03 数列求和问题(第二篇)-备战2020年高考数学大题精做之解答题题型全覆盖人教A版(2019) 选修第二册 过关斩将 名优卷 综合检测山东省日照市2019-2020学年高二上学期期末数学试题人教A版(2019) 选择性必修第二册 过关斩将 第四章 数列 4.3 等比数列 4.3.2 等比数列的前n项和公式 第2课时 等比数列前n项和的综合运用
15-16高一下·上海浦东新·期末
名校
10 . 已知数列
,满足
;
(1)若
,
,
,求
的通项公式;
(2)若
,
,
,求
的前
项和为
;
(3)若
,
,
满足
恒成立,求
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/566395d1094e474aa8b42cf382b292ea.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/558e11d700481dc414d5d073b4b88a3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2753dc1c83d54044b89e628a7eb247f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/558e11d700481dc414d5d073b4b88a3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ad6f1c0e0c0d5c6bc5913caf162ef87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500d68f2678989a5ce7431cfd51b019d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe7bdaaf8b0adf10bf2ef6c1255b1dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045a17f090f9d762ce2ce7c1804f8645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
您最近一年使用:0次