名校
解题方法
1 . 等差数列
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331e95093927765b3b4ef77a9c0591a9.png)
,则
的最大值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0acf4c64d3919d2cc0bd0a9953133714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331e95093927765b3b4ef77a9c0591a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6afb7577911fa01ca4ad899a97eb7fab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
名校
解题方法
2 . 已知数列
是等差数列,若
,则数列
的项数
的最大值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9dbd1e7e01653b02f4b0545c5b49368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
名校
解题方法
3 . 已知数列
的通项公式为
,记数列
的前
项和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681967bfbdcdae96320e06da896b4da4.png)
__________ ,
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ed4b8cc130d1eab232d399d4066f5c.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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681967bfbdcdae96320e06da896b4da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99d200aac7c303cc885b22406e18ac90.png)
您最近一年使用:0次
2022-03-16更新
|
357次组卷
|
3卷引用:河北省沧州市任丘第一中学2021-2022学年高二上学期期末数学试题
河北省沧州市任丘第一中学2021-2022学年高二上学期期末数学试题河北省沧州市2021-2022学年高二上学期期末数学试题(已下线)高二上学期期末【压轴60题考点专练】(选修一+选修二)-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)
2022高三·上海·专题练习
解题方法
4 . 对于数列
,如果存在最小的一个常数
,使得对任意的正整数恒有
成立,则称数列
是周期为
的周期数列.设
,数列前
项的和分别记为
,则
三者的关系式___________ ;已知数列
的通项公式为
,那么满足
的正整数
=___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7c1a8a6121a6f52535b121c6304e5b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2b94cbf8f1acc77ed2618d9ba5756a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b6de041bc82fee85c8d78272a49069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d04c40711df685486acacfff234fa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d917c6c2bc767e1e63b90854c231a290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d917c6c2bc767e1e63b90854c231a290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a118735e2feb0440e055b5ee511cea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9534ed1c74894c735ffa3c71df721343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
5 .
为等差数列,则使等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2827d6c1d817a7e569c110c8a4bd070f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d9cc087f00bb2fe816076c34d06e38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1623f073868911f12161faaf8a7b5e.png)
能成立的数列
的项数n的最大值是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2827d6c1d817a7e569c110c8a4bd070f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d9cc087f00bb2fe816076c34d06e38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1623f073868911f12161faaf8a7b5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac3f454f0de302a00b0f3af45faa99f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
2020-01-10更新
|
376次组卷
|
2卷引用:上海市控江中学2018-2019学年高三上学期12月月考数学试题