名校
解题方法
1 . 已知数列
的前
项和为
,等差数列
的公差为
,且
,
,则( )
![](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/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ab180c92d15e8ba80236975e1f8c61.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
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2 . 已知数列
的首项为
,且
,数列
、数列
数列
的前
项和分别为
,则( )
![](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/1789ee9a2337424f196aa46cd1467e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cf1da18d91f7c98086553d157d1a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e06f3e3a89ed606f4206fb36bb7bc090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46f3ac8a1d753bea4cf552978c3a83c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be456f6c6ab25a93bc1f3705819e8ec.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知数列
满足
,
,
,
为数列
的前
项和,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa62fee39be303de1ec1ddebab93397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2693734765399876e9e93cdb110231c4.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)
A.![]() |
B.当![]() ![]() |
C.设![]() ![]() ![]() ![]() ![]() |
D.设![]() ![]() ![]() ![]() ![]() |
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4 . 已知正项数列满足
,则( )
A.![]() |
B.![]() |
C.若![]() ![]() ![]() |
D.已知![]() ![]() ![]() |
您最近一年使用:0次
5 . 设数列
满足
(
且
),
是数列
的前
项和,且
,
,数列
的前
项和为
,且
.则下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f10e7730bce4aaff633735148c5c31d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.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/94350a1a847c7b597fb15c01b1f6dca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30da7deec243d7fbafafdee9e0758a9.png)
A.![]() | B.数列![]() ![]() |
C.当![]() ![]() | D.当![]() ![]() |
您最近一年使用:0次
6 . 已知数列
满足
,
,
,则( )
![](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/d754bc529cfab94af50384ef686b191d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-03-29更新
|
573次组卷
|
3卷引用:四川省成都市第七中学2023-2024学年高二下学期3月阶段性检测数学试题
四川省成都市第七中学2023-2024学年高二下学期3月阶段性检测数学试题云南省昆明市禄劝彝族苗族自治县第一中学2023-2024学年高二下学期3月阶段性检测数学试题(已下线)模块四专题6重组综合练(四川)(8+3+3+5模式)(北师大版高二)
解题方法
7 . 已知数列
共有
项,
,且
,记这样的数列
共有
个,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d99e8ff072b8df36d660427babf073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c2b428dfb6ff184554cbe2f299c23d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba28a7346cf50329bede9d30d3bdaa0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d99e8ff072b8df36d660427babf073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-03-21更新
|
430次组卷
|
3卷引用:江西省部分学校2023-2024学年高二下学期第一次阶段性考试数学试卷
名校
解题方法
8 . 已知
是等差数列
的前
项和,满足
,设
,数列
的前
项和为
,则下列结论中正确的是( )
![](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/e8d308242e322289b950c25f9637da73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/230ae9538a1b0ec62c3491cbce25df8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30136113176ba7fe660e998d0873157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
A.![]() |
B.使得![]() ![]() |
C.![]() |
D.当![]() ![]() |
您最近一年使用:0次
解题方法
9 . 已知正项数列
中,
,且
,则下列说法正确的是( )
![](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/d754bc529cfab94af50384ef686b191d.png)
A.数列![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-12-12更新
|
411次组卷
|
2卷引用:河北省邯郸市鸡泽县第一中学2023-2024学年高二上学期12月月考数学试题
名校
解题方法
10 . 已知各项都是正数的数列
的前n项和为
,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8478601d087d537371766d1b4c55a144.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次