12-13高三上·山东临沂·阶段练习
1 . 设数列
的前
项和为
,且
;数列
为等差数列,且
.
(Ⅰ)求数列
的通项公式;
(Ⅱ)若
,
为数列
的前
项和,求
![](https://img.xkw.com/dksih/QBM/2012/1/12/1570689034166272/1570689039523840/STEM/262ffafc9263462a9266ce0f8ad6197a.png)
![](https://img.xkw.com/dksih/QBM/2012/1/12/1570689034166272/1570689039523840/STEM/b0f8f0c64f884a21bb1a708dc2a013d6.png)
![](https://img.xkw.com/dksih/QBM/2012/1/12/1570689034166272/1570689039523840/STEM/ffa6da2572bf4751a0172fb09faa5eda.png)
![](https://img.xkw.com/dksih/QBM/2012/1/12/1570689034166272/1570689039523840/STEM/36c4c23aa86a4fbda7ee0c5336f476a4.png)
![](https://img.xkw.com/dksih/QBM/2012/1/12/1570689034166272/1570689039523840/STEM/9123204fced64db8b1c3e821c405161c.png)
![](https://img.xkw.com/dksih/QBM/2012/1/12/1570689034166272/1570689039523840/STEM/9b53d79ac7ff4c68a033766f8be7f940.png)
(Ⅰ)求数列
![](https://img.xkw.com/dksih/QBM/2012/1/12/1570689034166272/1570689039523840/STEM/262ffafc9263462a9266ce0f8ad6197a.png)
(Ⅱ)若
![](https://img.xkw.com/dksih/QBM/2012/1/12/1570689034166272/1570689039523840/STEM/92ab653eafb74e339d8d1ac2a9de8c40.png)
![](https://img.xkw.com/dksih/QBM/2012/1/12/1570689034166272/1570689039523840/STEM/074d3d47fdce48d9a11d930f12d060d0.png)
![](https://img.xkw.com/dksih/QBM/2012/1/12/1570689034166272/1570689039523840/STEM/bd788a64c93a4f4d809d12bc55b3688e.png)
![](https://img.xkw.com/dksih/QBM/2012/1/12/1570689034166272/1570689039523840/STEM/b0f8f0c64f884a21bb1a708dc2a013d6.png)
![](https://img.xkw.com/dksih/QBM/2012/1/12/1570689034166272/1570689039523840/STEM/074d3d47fdce48d9a11d930f12d060d0.png)
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12-13高二上·山东聊城·期中
2 . 已知数列
的前
项和为
,且
是
与2的等差中项,数列
中,
,点
在直线
上.
⑴求
和
的值;
⑵求数列
的通项
和
;
⑶ 设
,求数列
的前n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/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74e46dd9b2cc7438432fd49094fb51cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23fc11a3a7592c68b20f93bdde2ed3f.png)
⑴求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
⑵求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf32f2ec5036dbd496eeb001efd78eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
⑶ 设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766bcdf235a666a88fa3671883f094f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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12-13高三上·山东济宁·阶段练习
解题方法
3 . 已知等差数列![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384747b6ddf3137a2cc4665d7749c5bf.png)
(1)求数列
的通项公式
(2)设
,求数列
的前n项和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384747b6ddf3137a2cc4665d7749c5bf.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efe3f6bad68504112541c2d87d467b73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
您最近一年使用:0次
2011高二上·山东潍坊·学业考试
解题方法
4 . 已知点(1,2)是函数
的图象上一点,数列
的前
项和
.
(Ⅰ)求数列
的通项公式;
(Ⅱ)若
,求数列
的前
项和
.
![](https://img.xkw.com/dksih/QBM/2012/10/24/1571032771551232/1571032777211904/STEM/48180b0b5b6d48199c0ddcb24fef7656.png)
![](https://img.xkw.com/dksih/QBM/2012/10/24/1571032771551232/1571032777211904/STEM/bf73c84af8de4f08bf80eb19ac278f68.png)
![](https://img.xkw.com/dksih/QBM/2012/10/24/1571032771551232/1571032777211904/STEM/b693fecf06a547698297c7c1f3ec4c88.png)
![](https://img.xkw.com/dksih/QBM/2012/10/24/1571032771551232/1571032777211904/STEM/feab03c972d242399a33e7e4cd226830.png)
(Ⅰ)求数列
![](https://img.xkw.com/dksih/QBM/2012/10/24/1571032771551232/1571032777211904/STEM/bf73c84af8de4f08bf80eb19ac278f68.png)
(Ⅱ)若
![](https://img.xkw.com/dksih/QBM/2012/10/24/1571032771551232/1571032777211904/STEM/4a84dd1a04b6409f98b9da28768e287f.png)
![](https://img.xkw.com/dksih/QBM/2012/10/24/1571032771551232/1571032777211904/STEM/65e951c15fd24613b77d68c545389965.png)
![](https://img.xkw.com/dksih/QBM/2012/10/24/1571032771551232/1571032777211904/STEM/b693fecf06a547698297c7c1f3ec4c88.png)
![](https://img.xkw.com/dksih/QBM/2012/10/24/1571032771551232/1571032777211904/STEM/4b045758a8724e83911869913764f002.png)
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10-11高一下·河北衡水·期末
解题方法
5 . 已知各项均为正数的数列
中,
是数列
的前n项和,对任意
,有
.函数
,数列
的首项
.
(1)求数列
的通项公式;
(2)令
,求证:
是等比数列并求
通项公式;
(3)令
,(
为正整数),求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f29c79fdd620d9b767f6ddd46b9fa867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1933b7c3ace69622339353431c519b13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d8f7eef05add43b9fbb755eb6ac27e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f762c96e3ac6d45248ff06ebd7a6e0d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24c91f2b092950f51890e31a21e60f0.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd14979a3eacc6e6e8a34196634ddee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90ef289bff460f39a4f297ee6a81656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b783cf91e34e692ce8e171f0965cb53f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
2016-11-30更新
|
799次组卷
|
6卷引用:2012届山东省日照一中高三第七次阶段复习达标检测理科数学试卷
(已下线)2012届山东省日照一中高三第七次阶段复习达标检测理科数学试卷(已下线)2013届山东省临沂十八中高三第二次(3月)周测理科数学试卷(已下线)2010-2011年河北冀州中学高一年级下学期期末考试理科数学(B卷)(已下线)2010-2011年河北省冀州中学高一下学期期末考试理科试卷(A)2015-2016学年辽宁省实验中学分校高二上学期期末考试文科数学试卷2015-2016学年江西省临川一中高一下期中数学试卷
2011·宁夏银川·一模
解题方法
6 . 已知函数f(x)=x2-ax+b(a,b∈R)的图像经过坐标原点,且
,数列{
}的前n项和
=f(n)(n∈N*).
(Ⅰ)求数列{
}的通项公式;![](https://img.xkw.com/dksih/QBM/2012/6/29/1570905129082880/1570905134596096/STEM/e7e85f433142405693234e196f9058b3.png)
(Ⅱ)若数列{
}满足
+
=
,求数列{
}的前n项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e54aba7243b84c6e098dd276561daabb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(Ⅰ)求数列{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://img.xkw.com/dksih/QBM/2012/6/29/1570905129082880/1570905134596096/STEM/e7e85f433142405693234e196f9058b3.png)
(Ⅱ)若数列{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090426eb29836bc30c006b3739c08057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee2bf781534b71bd9b1785174fd42c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ce5960e99c3179d8156e796f95462ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
您最近一年使用:0次
2009·全国·高考真题
7 . 在数列
中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/874aaf62a97409d241ab047d9bf28f48.png)
(I)设
,求数列
的通项公式
(II)求数列
的前
项和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/874aaf62a97409d241ab047d9bf28f48.png)
(I)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980d51ba3340a31964fbec9e6f243ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89d1f32c1605cfdb8e8855051b9f6ec.png)
(II)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
2016-11-30更新
|
5543次组卷
|
22卷引用:山东省胶州市第一中学2019届高三10月份数学试题(理科)
山东省胶州市第一中学2019届高三10月份数学试题(理科)【全国百强校】山东省聊城市第一中学2019届高三上学期期中考试数学(理)试题山东省泰安市新泰市新泰中学2023届高考仿真训练(考前保温考)数学试题(已下线)2009年普通高等学校招生全国统一考试理科数学(全国卷Ⅰ)(已下线)2011届辽宁省铁岭六校高三上学期第三次联考数学理卷(已下线)2012届陕西省西工大附中高三第五次适应性训练文科数学试卷(已下线)2011-2012学年山西省忻州市高一下学期联考数学试卷2016-2017陕西西藏民族学院附中高二理12月考数学试卷广东省中山一中2018届高三级第五次统测试卷理科数学试题河北省石家庄市2018届高三毕业班教学质量检测数学(理)试题安徽省宿州市2018届高三上学期第一次教学质量检测数学(理)试题河北省衡水中学2018届高三数学理科三轮复习系列七-出神入化7【全国百强校】广东省汕头市金山中学2018-2019学年高二上学期期中考试 数学江苏省南京市九中2018-2019学年高一第二学期期中学情调研数学试题人教A版 成长计划 必修5 第二章数列 高考链接人教A版 成长计划 必修5 第二章数列 自我评估安徽省宿州市十三所重点中学2018-2019学年高一下学期期中数学试题专题05+数列-2021高考数学(理)高频考点、热点题型归类强化(已下线)一轮复习总测(A卷 基础过关检查)-2021年高考数学一轮复习单元滚动双测卷(新高考地区专用)江西省抚州市金溪县第一中学2019-2020学年高一下学期第一次月考数学试题湖南省长沙市长郡中学2023届高三二模数学试题2009年普通高等学校招生全国统一考试理科数学(全国卷Ⅰ)
8 . 设正项等比数列
的首项
,前
项和为
,
.
(1)求
的通项;
(2)求
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/894aaec56149f880c7cf2bbc0f358d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea8d0e50065114b05ef2dc1ea1129cf.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/d67bb027b6f839c8d6ac7b5c075270e0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/894aaec56149f880c7cf2bbc0f358d2b.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29a2bf329d67dbffb994fc7b89097f45.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
2016-12-03更新
|
883次组卷
|
6卷引用:2016届山东省潍坊中学高三上学期期末文科数学试卷
2016届山东省潍坊中学高三上学期期末文科数学试卷(已下线)2010-2011年黑龙江省鹤岗一中高一下学期期中考试文科数学(已下线)2015届山西省太原五中高三10月月考文科数学试卷【全国百强校】辽宁省沈阳市东北育才学校2018-2019学年高二上学期第二次月考数学(理)试题江苏省苏州市相城区望亭中学2020-2021学年高二上学期10月月考数学试题河南省新乡市第一中学2023-2024学年高三上学期10月月考数学试题
9 . 已知数列
的前
项和为
, 且
是
与2的等差中项,数列
中,
,点
在直线
上.
(Ⅰ) 求数列
的通项公式
和
;
(Ⅱ) 设
,求数列
的前n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/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc620ced12a88a5148090490a39ebbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b846b583e0046bd6969db3d70bca38e1.png)
(Ⅰ) 求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faa7b6da594e67616dc2039cfffd66a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
(Ⅱ) 设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9221c0c92a526f65533cdc5400767af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
10-11高三·山东济宁·阶段练习
10 . 已知数列
的前n项和为
,且
,(n=1,2,3…)数列
中,
,点
在直线
上.
(Ⅰ)求数列
和
的通项公式;
(Ⅱ)记
,求满足
的最大正整数n.
![](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/c8370a173854471a3eb27637993a3d5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13ca2c0683b40ff13a9770d2355c61b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23fc11a3a7592c68b20f93bdde2ed3f.png)
(Ⅰ)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(Ⅱ)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de1a039fbc0e3107271c45d47b247602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/023f0ceeb0f7feba35c9679e092dbfe2.png)
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