名校
1 . 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)
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2023-06-07更新
|
888次组卷
|
4卷引用:上海外国语大学闵行外国语中学2023-2024学年高二上学期期中数学试题
名校
解题方法
2 . 已知数列
满足
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2956b1eacaabaf91dfe664c4ea7940.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5562171cdbc0ac18cb95e1c94fa07c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb2dd78aa7ac3df9b83c075bb13f415d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/464d5fe51a7dc6bef2b4b4ff5341dc79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2956b1eacaabaf91dfe664c4ea7940.png)
您最近一年使用:0次
名校
3 . 已知
是等差数列,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4330efbe82ab6a7261ef78860c08be70.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd77c2416f15439284e822df89b6979c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4330efbe82ab6a7261ef78860c08be70.png)
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2023-03-30更新
|
669次组卷
|
3卷引用:上海交通大学附属中学闵行分校2022-2023学年高二下学期3月月考数学试题
上海交通大学附属中学闵行分校2022-2023学年高二下学期3月月考数学试题黑龙江省哈尔滨市第三十二中学校2022-2023学年高二下学期期中考试数学试卷(普班)(已下线)专题04数列全章复习攻略--高二期末考点大串讲(沪教版2020选修)
名校
解题方法
4 . 设等差数列
的前
项和为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfc875ca919921e8f63a6fca648561b.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/dd478b1ba0e42545b45d505e2e84a140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfc875ca919921e8f63a6fca648561b.png)
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2023-03-10更新
|
329次组卷
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3卷引用:上海市七宝中学2022-2023学年高二下学期开学摸底数学试题
名校
解题方法
5 . 已知等差数列
的公差为d,首项
,当且仅当
时,其前n项和
取得最大值,则d的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac85f2734fc720360f0fc8cecad570b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ec5d76db9bd05547932966c9913dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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2023-02-15更新
|
656次组卷
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4卷引用:上海市七宝中学2022-2023学年高二下学期期中数学试题
名校
6 . 已知数列
的首项
,且满足
对任意
都成立,则能使
成立的正整数
的最小值为_________ .
![](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/d1cce9ba819fb2e661ecb4c2543f0d99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209591cfb9f8271f5ad48d89f214f22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ed1fd5712bdd514dbbc1d9c9038679.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-02-09更新
|
759次组卷
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4卷引用:上海交通大学附属中学闵行分校2022-2023学年高二下学期3月月考数学试题
7 . 设直线
:
,其中
,
,
成等差数列.过原点
作直线
的垂线,垂足为
,则
到直线
距离的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f6e1f67dc15c3cf135a78af95c70fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18436f0e2391b0ab7537a566fc28204c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d6c3cba2aeac394d211ba0fef04cbe0.png)
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8 . 若
是
,
的等差中项,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0946c5de471c1ff50c8f3d59204011bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6361c416d3fb372d343e10ff99b5be27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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名校
9 . 已知数列
是首项为a,公差为1的等差数列,数列
满足
.若对任意的
,都有
成立,则实数a的取值范围是______ .
![](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/9b00e0725b1c19a5a5feca48ea6bbb5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209559aca6bf32705588b6a40e0b7320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854e97cf1c153fc911a3787185d9cb37.png)
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2022-08-08更新
|
934次组卷
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7卷引用:上海市七宝中学2023-2024学年高二上学期期中数学试题
上海市七宝中学2023-2024学年高二上学期期中数学试题湘教版(2019) 选修第一册 突围者 第1章 第二节 课时1 等差数列及其通项公式、等差数列与一次函数(已下线)4.2.1等差数列的概念(第1课时)(分层作业)-【上好课】2022-2023学年高二数学同步备课系列(人教A版2019选择性必修第二册)(已下线)4.2.1等差数列的概念(4)(已下线)4.2.1 等差数列的概(2)(已下线)专题7 数列不等式 (基础版)北京名校2023届高三一轮总复习 第6章 不等式 6.4 不等式的综合应用
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10 . 在等差数列
中,若
,
,则公差d=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d8e8f821111de8075e5c3dfb22a5d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7abe2dbf91b745e81aa97bee35b0bda.png)
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