真题
1 . 已知
和
是两个不相等的正整数,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699e55c211a6e091cc7a9d2cde3ed981.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ebbd105640434902aa29c717d84c6c9.png)
A.0 | B.1 | C.![]() | D.![]() |
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2020-07-04更新
|
129次组卷
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2卷引用:2007年普通高等学校招生考试数学(理)试题(湖北卷)
真题
2 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c65019e765d7a01878d9f0fff33b5f8.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c65019e765d7a01878d9f0fff33b5f8.png)
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真题
3 . 若首项为
,公比为q的等比数列
的前n项和总小于这个数列的各项和,则首项
公比q的一组取值可以是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64cb74e2bb12a4ddbc44c7932d1a5865.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64cb74e2bb12a4ddbc44c7932d1a5865.png)
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2016-12-02更新
|
826次组卷
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6卷引用:2003 年普通高等学校招生考试数学(理)试题(上海卷)
真题
名校
4 . 等差数列{
}的公差不为零,首项
=1,
是
和
的等比中项,则数列的前10项之和是
![](https://img.xkw.com/dksih/QBM/2010/3/15/1569632597450752/1569632715186176/STEM/8bd33197e76249baada09887c3c40a97.png)
![](https://img.xkw.com/dksih/QBM/2010/3/15/1569632597450752/1569632715186176/STEM/056c024fae5e4a37ba4f9fc77a50dcb1.png)
![](https://img.xkw.com/dksih/QBM/2010/3/15/1569632597450752/1569632715186176/STEM/a0a58f13593a4679a0de7a93277447b2.png)
![](https://img.xkw.com/dksih/QBM/2010/3/15/1569632597450752/1569632715186176/STEM/056c024fae5e4a37ba4f9fc77a50dcb1.png)
![](https://img.xkw.com/dksih/QBM/2010/3/15/1569632597450752/1569632715186176/STEM/45217bdc651040a2ad6134f510bda44b.png)
A.90 | B.100 | C.145 | D.190 |
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2019-01-30更新
|
120次组卷
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4卷引用:2009年普通高等学校招生全国统一考试文科数学(四川卷)
2009年普通高等学校招生全国统一考试文科数学(四川卷)(已下线)2011届福建省厦门市双十中学高三上学期期中考试数学卷(已下线)2013-2014学年内蒙古包头三十三中高二上期中考试文数学试卷河北安平中学(实验部)2017-2018学年高一下学期第三次月考理科数学试题
真题
名校
5 . 若数列{an}是首项为1,公比为a-
的无穷等比数列,且{an}各项的和为a,则a的值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
A.1 | B.2 | C.![]() | D.![]() |
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2016-11-30更新
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201次组卷
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5卷引用:2008年普通高等学校招生全国统一考试理科数学(上海卷)
6 . 某市2003年共有一万辆燃油型公交车.现计划于2004年投入128辆电力型公交车,随后电力型公交车每年的投入比上一年增加50%,试问:
该市在2010年应该投入多少辆电力型公交车?
到哪一年底,电力型公交车的数量开始超过该市公交车总量的
![](https://img.xkw.com/dksih/QBM/2010/12/1/1569922801983488/1569922807357440/STEM/9bda5c94b1c343a099fad1c5443f6373.png?resizew=20)
![](https://img.xkw.com/dksih/QBM/2010/12/1/1569922801983488/1569922807357440/STEM/b753f11ac63a4c87827fb3e8ec6d0d2b.png?resizew=23)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e117ff0d375094c6816c3552f1a3df03.png)
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2016-11-30更新
|
1197次组卷
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3卷引用:2004 年普通高等学校招生考试数学试题(上海卷)
真题
名校
7 . 数列
中,
则数列
的极限值( )
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571003848302592/1571003853422592/STEM/28af10d997874dbbbc64c68113cd91eb.png?resizew=33)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d4698f7096b14cfcc3c1593b85e7d6.png)
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571003848302592/1571003853422592/STEM/28af10d997874dbbbc64c68113cd91eb.png?resizew=33)
A.等于![]() | B.等于![]() | C.等于![]() ![]() | D.不存在 |
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2012-09-07更新
|
1216次组卷
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5卷引用:2007年普通高等学校招生考试数学(文)试题(上海卷)
真题
8 . 设等比数列{
}的前n项和为
.若
,则
=__________
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643323392/STEM/4df0711e3b014589b728446ce33c40d1.png?resizew=19)
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643323392/STEM/b08e9af598324fb5bf3b238627ae3ef8.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643323392/STEM/ecc6b302aca94275b8fa01784b53a5a6.png?resizew=97)
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643323392/STEM/8722208a2dbc4240816e735e79933215.png?resizew=19)
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9 . 设
记不超过
的最大整数为[
],令{
}=
-[
],则
{
},[
],![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643421696/STEM/9385ac0e3dbc4743b070f5434d83c8ef.png)
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643421696/STEM/6a9e292a45524e2691caed0064b7177c.png)
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643421696/STEM/7d248561cc344de893cf1126a655114e.png)
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643421696/STEM/7d248561cc344de893cf1126a655114e.png)
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643421696/STEM/7d248561cc344de893cf1126a655114e.png)
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643421696/STEM/7d248561cc344de893cf1126a655114e.png)
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643421696/STEM/7d248561cc344de893cf1126a655114e.png)
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643421696/STEM/093836b4cf7b498ca4e0b8b0d493b887.png)
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643421696/STEM/9385ac0e3dbc4743b070f5434d83c8ef.png)
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643421696/STEM/9385ac0e3dbc4743b070f5434d83c8ef.png)
![](https://img.xkw.com/dksih/QBM/2010/3/29/1569681460748288/1569681643421696/STEM/9385ac0e3dbc4743b070f5434d83c8ef.png)
A.是等差数列但不是等比数列 | B.是等比数列但不是等差数列 |
C.既是等差数列又是等比数列 | D.既不是等差数列也不是等比数列 |
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