名校
解题方法
1 . 已知公差不为
的等差数列
的前
项和为
,若
,则
的最小值为____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.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/9788f2f84089c05757ccb4c3f32f088e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
2021-12-20更新
|
891次组卷
|
7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
2 . 已知函数
,各项均不相等的数列
满足
,记
.①若
,则
;②若
是等差数列,且
,则
对
恒成立.关于上述两个命题,真命题的个数为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7f9b35017daa8b524c5717a355834a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7791355d06b49550fb42510840e3921.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d781392baa5d0de039e8a2283c09e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9c808aa74de39cd029cc58d6fd8498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0421c48dff70b078dc2aca447f053f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa3fd7269156552b3d0976b1e8dc5d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae0a0b8fa6b4731d99e02219d02f37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
您最近一年使用:0次
名校
解题方法
3 . 数列
中,
表示与
最接近的整数,则满足
的正整数n的最小取值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38123d52b295071c2f6cfe5097ff8740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d249094ecb996458e35182d6b461299.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8050b9b527f4a35a67129b049c857367.png)
您最近一年使用:0次
2021-10-05更新
|
429次组卷
|
3卷引用:上海市七宝中学2022届高三上学期期中数学试题
上海市七宝中学2022届高三上学期期中数学试题重庆市西南大学附属中学2021届高三下学期第五次月考数学试题(已下线)专题09 数列(选择题、填空题)-备战2022年高考数学(文)母题题源解密(全国甲卷)
解题方法
4 . 已知复数
,满足
,
,其中
为虚数单位,
表示
的共轭复数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eacb0939935b2991f3df7a86f3fac5bf.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1446ac777348761c66bfd7a073aed24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d76e1e06c2ba70ccf7bbad0a90180fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f153286b36ba33198e84e0c5af6ae79a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2dd355fd9dc7dcc5d03d4aac5a85403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7034d1c4fce36a9c9f71094e3fecf349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eacb0939935b2991f3df7a86f3fac5bf.png)
您最近一年使用:0次
5 . 已知数列
为等差数列,
且
,设
,当
的前
项和
最小时,
的值组成的集合为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179513ce80436471efbe1d9b31735f7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d994550ea79bc3919b1bd087dd04c11b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844977d9d6d60364d11e9f504456ecd5.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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
6 . 已知数列
满足
,且
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf9ee81d38182ecd57b0777f910aa65.png)
___________ .(结果用含a的式子表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f03b007be99a17613246b5ea1ff86d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e39a28754dce79f732da5f5585a86ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/739999abba91227d93267602e0ebe9f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf9ee81d38182ecd57b0777f910aa65.png)
您最近一年使用:0次
7 . 已知定义在
上的函数
满足
.设
在
上的最大值记作
,
为数列
的前
项和,则
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bdfed8d6862125dc1fecfce0322a750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/559dd1f0a6d338e07321c2f871e1b3ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0f8656f22ae1b0c67a308e48bb2cf59.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/83cf38189d5cbf627d2b82ac0eb76006.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
名校
解题方法
8 . 已知向量序列
,满足如下条件:
,
,
,且
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8a6d63444fb80d9396449ed5fb1cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa92ce097380a3a74ad3929547ece02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d964862471c4591392649faed628a58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d27efcb6fc5ee2924b5bb7dcf35ba87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a7911d0af2d752b63c80f7cbe42454c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27ed6efb190d077e837a50d231d57b9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
您最近一年使用:0次
名校
解题方法
9 . 已知
,
表示小于
的最大整数,
,令
,则
中元素之和为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63c39788661b7b33f8f33821d0ed6d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5bb9d982138f5db10c16f5da2707c10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62330a4826aefb374e780f119221766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad941ea63bcd0e32a98ac70f13db54fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
10 . 若
是等差数列
的前n项和,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31f0355a5db1f6d5c5d1bc5bce9ca28.png)
______ .
![](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/151c2aa296b9597fe29d3757af76eb65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31f0355a5db1f6d5c5d1bc5bce9ca28.png)
您最近一年使用:0次
2020-02-07更新
|
61次组卷
|
2卷引用:2016届上海市闵行区高三上学期期末质量调研(一模)(文)数学试题