23-24高三上·湖北·期末
1 . 已知数列
中,对任意的
,都有
.
(1)若
为等差数列,求
的通项公式;
(2)若
,求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28652e52c0b02a343e618935ea625cbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bbb03e9f93969580c6f07667c209779.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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2023-01-11更新
|
831次组卷
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3卷引用:四川省成都市树德中学2022-2023学年高三下学期开学考试数学(理)试题
名校
解题方法
2 . 已知等差数列
的公差为
,前
项和为
,且满足______(从①
;②
,
,
成等比数列;③
这三个条件中任选两个补充到题干中的横线位置,并根据你的选择解决问题).
(1)求
;
(2)设
,数列
的前
项和为
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bfe21c96489cb30c544d49ddb4c1c8.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/710c22735357979043c7cb1cf5e04350.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da4cd81500bdb43118150dbdb1541e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5032706dd285c22e149c675da465d9ac.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216876de04325fd250c38c485cbc34b7.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)
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2023-02-04更新
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4卷引用:四川省成都市郫都区2022-2023学年高三下学期阶段性检测(三)数学(文)数学试题
3 . 已知公差为正数的等差数列
的前
项和为
,________.请从以下二个条件中任选一个,补充在题干的横线上,并解答下列问题:①
成等比数列,②
.
(1)求数列
的通项公式;
(2)若
,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/ae734ad099abbb2f7efe7d7a6a4169fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915aa8f3ac71eee74b1cef246fd9f6c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/403acf04c671160e01373a05729b008e.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216876de04325fd250c38c485cbc34b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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名校
解题方法
4 . 已知
为数列
的前
项和,且
,(
,
),若
,
.求:
(1)数列
的通项公式;
(2)
的最值.
![](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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccb0cc1c5411ff93a88b708a7118f6ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d8bbb4a09e0ac86bbae46222a90841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1dfe5b322577f02fd19caab8cf20170.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5efa9edcebc6fd8278b606863ea053cb.png)
(1)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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3卷引用:四川省达州市达川区铭仁园学校2023-2024学年高二上学期第四次月考数学试题
5 . 已知数列
满足
,
,
,数列
是等差数列,且
,
.
(1)求数列
,
的通项公式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
(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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02ce9d5623b21817dd182b9058dc271a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c968ef8f37cbc55d57380015e0229f77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc7afcb1a91de8aeea374985105ab08.png)
(1)求数列
![](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/5e1d918e7fb74176679d526cdfc8fa16.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d44ddab6e0c60119be69985ae7fa65b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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解题方法
6 . 已知数列
的前
项和为
, 且
, __________.请在
成等比数列;
, 这三个条件中任选一个补充在上面题干中, 并解答下面问题.
(1)求数列
的通项公式;
(2)设数列
的前
项和
, 求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751c3b0c7d916ddc24d7bd036ea0eecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4011c597ba394120a1a74b6f4a401159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25108967f8f95c445c109348592d4fee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff3432f48e3f2e684d45e89403110ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9694346716bad8031f17fff37273ddc.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751c3b0c7d916ddc24d7bd036ea0eecd.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55f3cadcc65d380f74102037b46a4f8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59887a5ab83d604d78b8a204b7f88bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24974f2d84f24c6dc2d836e0d9fa5359.png)
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7卷引用:四川省遂宁市第二中学校2023届高三上学期一诊模拟考试理科数学试卷(二)
四川省遂宁市第二中学校2023届高三上学期一诊模拟考试理科数学试卷(二)四川省南充市2021-2022学年高三高考适应性考试(一诊)数学(理)试题(已下线)数列求和山西省晋城市泽州县晋城一中教育集团南岭爱物学校2022-2023学年高二上学期1月期末调研考试数学试题(已下线)热点07 数列与不等式-2022年高考数学【热点·重点·难点】专练(新高考专用)湖南省岳阳市2022届高三下学期教学质量监测(三)数学试题广东省揭阳市普宁国贤学校2022-2023学年高二上学期期末数学试题
7 . 在等差数列
中,已知
,
.
(1)求
的通项公式;
(2)设
的前n项和为
,若
,求n的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9652f65b28e2032c0cbc2a9649db4f51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0748c346ed88f98e424de8edf278325.png)
(1)求
![](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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51ec85fce82051cd8091b8c5c339518a.png)
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名校
解题方法
8 . 已知数列
的前n项和
.
(1)求数列
的通项公式;
(2)若
,求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/261a89867406a555edaf6e4585e65689.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb4e138bca973f72f64014abe10237b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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四川省绵阳市三台县三台中学校2023-2024学年高三上学期第二学月测试数学(文)试题四川省成都市成都外国语学校2019-2020学年高三期中数学(理)试题四川省成都市成都外国语学校2019-2020学年高三上学期期中数学(文)试题(已下线)第7讲 数列求和9种常见题型总结 (1)河南省开封市五县2023-2024学年高二上学期联考数学试题(已下线)2020届高三12月第01期(考点06)(理科)-《新题速递·数学》山西省稷山县稷山中学2020届高三上学期第二次月考数学(理)试题江西省萍乡市芦溪中学2023届高三上学期第一次月考数学(文)试题(已下线)第04讲 数列求和 (高频考点—精练)甘肃省天水市田家炳中学2022-2023学年高二上学期10月月考数学试题江西省临川第一中学2023届高三上学期期中数学(理)试题
解题方法
9 . 已知
为等差数列
的前
项和,
,
.
(1)求数列
的通项公式;
(2)求满足
的最小正整数.
![](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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a0eecb5b800fce9ae10aed86ffee62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5731f65834e58bb01c8d21a695e395ce.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15111246d5d2d9303f8f7a58adc3188b.png)
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名校
解题方法
10 . 在数列
中,
,
,且满足
.
(1)求数列
的通项公式;
(2)设
是数列
的前
项和,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdf53108bee755f5aa9a34ea4d163e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d77060931748cee8c21b43d15033b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d716ccbf4313122355c270fe2e67b5.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b91adba8efbf964e9e35547b0fd0ea36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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四川省宜宾市第四中学校2023-2024学年高二上学期12月月考数学试题江西省吉安市第三中学2024届高三上学期开学考试(艺术类)数学试题(已下线)第四章 数列(压轴题专练)-2023-2024学年高二数学单元速记·巧练(苏教版2019选择性必修第一册)甘肃省兰州市城关区第一中学2019-2020学年高二上学期期中数学试题人教A版(2019) 选修第二册 突围者 第四章 易错疑难集训(一)人教B版(2019) 选修第三册 突围者 第五章 第二节 课时2 等差数列的前n项和(1)北师大版(2019) 选修第二册 突围者 第一章 第二节 等差数列 课时2 等差数列的前n项和(1)山西省运城市平陆中学2021-2022学年高二上学期开学测试数学试题(已下线)专题1.3 数列 章末检测3(难)-【满分计划】2021-2022学年高二数学阶段性复习测试卷(人教A版2019选择性必修第二册)湘教版(2019) 选修第一册 突围者 第1章 第二节 课时2 等差数列的前n项和(1)