已知
为等差数列,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d452fb5c2773d58bc2d559add014f66.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
22-23高二上·河北保定·期末 查看更多[4]
河北省保定市2022-2023学年高二上学期期末联考数学试题河北省石家庄市四十四中2022-2023学年高二下学期开学考试数学试题(已下线)专题06 等差数列及其前n项和8种常见考法归类(2)(已下线)重组1 高二期末真题重组卷(河北卷)A基础卷
更新时间:2023-01-10 10:44:49
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【推荐1】对于数列
,若
,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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C.数列![]() | D.![]() |
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【推荐2】已知公差不为0的等差数列
的前
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,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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A.![]() | B.![]() |
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【推荐1】已知数列
的前
项和
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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A.![]() | B.![]() |
C.数列![]() ![]() | D.![]() |
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【推荐2】已知
为等差数列,前n项和为
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b71ef6cb9c5d494692d40a9ef279f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc807ea4b8a7ed325aee49aa292552ff.png)
A.![]() |
B.当![]() ![]() |
C.数列![]() |
D.当![]() ![]() ![]() |
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