设等差数列的前
项和为
,且
,
,记
为数列
的前
项和,若
恒成立,则
的值可以是( )
A.![]() | B.![]() | C.![]() | D.![]() |
22-23高二下·湖北·期中 查看更多[4]
湖北省部分省级示范高中2022-2023学年高二下学期期中联考数学试题(已下线)模块一 专题1 数列 2 (人教A)(已下线)模块一 专题4 数列 2 (北师大2019版)(已下线)微专题1 数列综合应用-2023-2024学年高二数学《重难点题型·高分突破》(苏教版2019选择性必修第一册)
更新时间:2023-04-26 14:15:52
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【推荐1】下列结论正确的是( )
A.“![]() ![]() |
B.![]() |
C.已知在前n项和为Sn的等差数列{![]() ![]() ![]() |
D.已知![]() ![]() |
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【推荐2】已知数列
的前
项和
.数列
满足
,数列
的前
项和为
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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【推荐1】已知等差数列
的公差
,当且仅当
时,
的前
项和
最大,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】已知等差数列
的前
项和为
,公差
,
,
是
与
的等比中项,则下列选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
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A.![]() |
B.![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() |
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【推荐1】已知数列
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,其中
,
为数列
的前
项和,则下列四个结论中,正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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A.数列![]() ![]() | B.数列![]() |
C.![]() | D.若对于任意的![]() ![]() ![]() |
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【推荐2】已知各项均为正数的等比数列
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的前n项和为
,则下列说法正确的是( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188c2fd902ad57934546c85cddccb64e.png)
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A.数列![]() ![]() | B.![]() |
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【推荐1】设数列
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A.![]() ![]() ![]() |
B.![]() ![]() ![]() |
C.![]() |
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【推荐2】已知数列
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A.![]() | B.![]() | C.![]() | D.![]() |
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