真题
名校
1 . 在直角坐标平面中,已知点
,
,
,…,
,其中
是正整数,对平面上任一点
,记
为
关于点
的对称点,
为
关于点
的对称点,…,
为
关于点
的对称点.
(1)求向量
的坐标;
(2)当点
在曲线
上移动时,点
的轨迹是函数
的图像,其中
是以3为周期的周期函数,且当
时,
.求以曲线
为图像的函数在
上的解析式;
(3)对任意偶数
,用
表示向量
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c0c770ededa07b186fd5c34eb16ed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7eee1f9841ba418a99f4af12c62b58b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d806aaaf18d476faa01496db5644e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b6ac9df5d8ffede03ef0d21c32a88e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7356ec98b600ece41f3a6b4bc26a7d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7356ec98b600ece41f3a6b4bc26a7d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ea50db79b18d8700cfa2559ff5e2d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
(1)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12787674cf0f0e71eec9ac3d1727fda4.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7356ec98b600ece41f3a6b4bc26a7d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b531df3eb4c81b956718f4083c1c408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f0499141930680241c2d8fc5bd1922c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74440ee5b3fe9565f3cb09ac36998096.png)
(3)对任意偶数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc801f5007dec6cf5183bfd3051fb02.png)
您最近一年使用:0次
2019-11-08更新
|
443次组卷
|
5卷引用:上海市金山中学2019-2020学年高二上学期9月月考数学试题
2 . 已知数列
,对于任意的正整数
,
,设
表示数列
的前
项和.下列关于
的结论,正确的是( )
![](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/da6662fd0a25698b8f30e8b25a20536c.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/e2e53542ad942e269a580a4dc7cc6fef.png)
A.![]() | B.![]() |
C.![]() | D.以上结论都不对 |
您最近一年使用:0次
2019-11-08更新
|
166次组卷
|
3卷引用:上海市金山中学2019-2020学年高二上学期9月月考数学试题
3 . 平面角坐标系中,射线
和
上分别依次有点
,
,...,
,...和点
,
,...,
,...,其中
(1,1),
(1,2),
(2,4),且
,
(n=2,3,4,...).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/8a812088-43e6-4e87-a645-39e5336d16ab.png?resizew=177)
(1)用n表示
及点
的坐标;
(2)用n表示
及点
的坐标;
(3)求四边形
的面积关于n的表达式
,并求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cfb764b285362ee742b6dc613a1460a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef578ffbdec208fba7f83005ac7633f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acaad1bb79735e6f3c90a5581dd03ebf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/006ce57da48f4384675798e521b7dc16.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/8a812088-43e6-4e87-a645-39e5336d16ab.png?resizew=177)
(1)用n表示
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a7cb7c2257a7209d841e811609ebca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
(2)用n表示
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8885460a31f99661cffaf6ae75591b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
(3)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46bc1dfb9a0c62a95db470d4748fd35c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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4 . 设
,0为坐标原点,
是函数图象上横坐标为
的点,向量
,和
=(6,0)的夹角为
,则满足
的最大正整数是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc24809b594f4e85dde17fd2128998e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/323d114a36d56466c003ac4720df4279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22034385f3c155410cc757c7f2618fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1480988d26abda64d9a4d20674ab76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92ffa8be5a02790c6161c56b8e90db64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ecfea15bbd7e9e91cdeafd92071cb4b.png)
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5 . 设无穷等比数列
的公比
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e2727c0faee8a602bfd908b4607dfc.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb08ac8920645c616053c845978bdf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e2727c0faee8a602bfd908b4607dfc.png)
您最近一年使用:0次
2019-11-07更新
|
199次组卷
|
4卷引用:上海市南洋模范中学2019-2020学年高三上学期9月月考数学试题
名校
6 . 如图所示,设正方形
的面积为1,正方形
的面积为
,正方形
的面积为
,它们的面积都比前者缩小
,无限地作这种正方形.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/737d85b8-b5fe-4a61-a129-8787dd105577.png?resizew=256)
(1)求所有这种正方形面积的和;
(2)点
、
、
、
、
、
,当
无限增大时,求点
无限地趋近哪一个点?
(3)点
、
、
、
、
、
,写出
点的坐标,当
无限增大时,求点
无限地趋近哪一个点?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f35d4ede5b91b03d09a99262de2693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eabf11d8ba451c6a4c2604cff07def31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b4825dd84ea86dc50304df2e76f1fa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/737d85b8-b5fe-4a61-a129-8787dd105577.png?resizew=256)
(1)求所有这种正方形面积的和;
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b56e44e4f0424a2b7a45567120a2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2857fac4963b129d99e79dcb3e13d295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
您最近一年使用:0次
2019-11-07更新
|
149次组卷
|
2卷引用:上海市向明中学2019-2020学年高二上学期10月月考数学试题
名校
7 . 已知整数
满足
,定义![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac9a03333f95d750c9a9e559f7e6529.png)
,
.
(1)求证:
;
(2)若
为等比数列,公比为
,且
,求
;
(3)若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/535577e9213fa6b2a2bed70460fc4077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/593a666fcd36c98494398f26b1863a39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac9a03333f95d750c9a9e559f7e6529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5adbce1478fc860834315adb24c144a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d83e1c68f3a7131da32f97430b201b64.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e8611719854a2448688e253b024be15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c575bc781c19f3e743b0d2573276435b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a40c26831b1ea4691c405ddffb3db1.png)
您最近一年使用:0次
真题
名校
8 . 在一次人才招聘会上,有A、B两家公司分别开出了它们的工资标准:A公司允诺第一年月工资数为1500元,以后每年月工资比上一年月工资增加230元;B公司允诺第一年月工资数为2000元,以后每年月工资在上一年的月工资增加基础上递增5%,设某人年初被A、B两家公司同时录取,试问:
(1)若该人分别在A公司或B公司连续工作
年,则他在第
年的月工资收入分别是多少?
(2)该人打算连续在一家公司工作10年,仅从工资收入总量较多作为应聘的标准(不计其它因素),该人应该选择哪家公司,为什么?
(3)在A公司工作比在B公司工作的月工资收入最多可以多多少元(精确到1元),并说明理由.
(1)若该人分别在A公司或B公司连续工作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)该人打算连续在一家公司工作10年,仅从工资收入总量较多作为应聘的标准(不计其它因素),该人应该选择哪家公司,为什么?
(3)在A公司工作比在B公司工作的月工资收入最多可以多多少元(精确到1元),并说明理由.
您最近一年使用:0次
2019-11-06更新
|
449次组卷
|
4卷引用:上海市晋元高级中学2019-2020年高二上学期9月阶段反馈数学试题
名校
9 . 无穷正实数数列
具有以下性质![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0f7a77cac21a51f4c39c7d9ad35dca8.png)
(1)求证:对具有上述性质的任一数列,总能找到一个正整数n使下面不等式恒成立![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e5e8336c9db7517d89c386cb63ef28.png)
(2)寻一个满足上述条件的数列,使下面不等式对任一正整数n均成立
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0f7a77cac21a51f4c39c7d9ad35dca8.png)
(1)求证:对具有上述性质的任一数列,总能找到一个正整数n使下面不等式恒成立
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e5e8336c9db7517d89c386cb63ef28.png)
(2)寻一个满足上述条件的数列,使下面不等式对任一正整数n均成立
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2334f49e73b6772fe51d1a9c56f3125.png)
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名校
10 . 设等比数列
的前
项和为
,且满足
,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/edaab1b42a0103a42adfe61f3e0fe1bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30f56664446f32dbbc2c5f12a99374.png)
您最近一年使用:0次
2019-10-23更新
|
248次组卷
|
2卷引用:上海市南模中学2019-2020学年高三上学期10月月考数学试题