1 . (理)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2461786bfe1f0f600feef5cdcf7c25a4.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2461786bfe1f0f600feef5cdcf7c25a4.png)
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2020-02-03更新
|
79次组卷
|
2卷引用:2016届上海市静安区高三4月教学质量检测(二模)(文+理)数学试题
名校
2 . 下列命题中正确的是( )
A.若无穷数列![]() ![]() |
B.数列![]() |
C.若存在常数![]() ![]() ![]() |
D.若无穷数列![]() ![]() ![]() |
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3 . 下列命题正确的是( )
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
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4 . 已知直线
与x轴、y轴分别相交于点
、
,设线段
的中点为
,
,O为坐标原点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/035ae831040f408b354a193c49067f10.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a24b60ae3e84aa3e2598d8c1c3bd35e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374cb268ffa23fc0bf12c6e6dc873c4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/035ae831040f408b354a193c49067f10.png)
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名校
5 . 设无穷等比数列
的公比为q,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0d99fef1aa4dbcc6dc7b30b7d2c9a9.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c96700a8b03dab9eb680cbf5305ae1e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0d99fef1aa4dbcc6dc7b30b7d2c9a9.png)
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2020-01-13更新
|
180次组卷
|
6卷引用:上海市市西中学2016-2017学年高二上学期期中数学试题
6 . 求值![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ecb8478a4c3849a72dc7f10d457cfd.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ecb8478a4c3849a72dc7f10d457cfd.png)
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名校
7 . 已知
,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/102f5aca6ac29fbd8d4939d268f598bd.png)
A.(-4,2) | B.(-4,+∞) | C.[-4,2] | D.![]() |
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8 . 已知一列非零向量
满足:
,
,其中
是正数
(1)求数列
的通项公式;
(2)求证:当
时,向量
与
的夹角为定值;
(3)当
时,把
中所有与
共线的向量按原来的顺序排成一列,记为
,令
,
为坐标原点,求点列
的极限点
的坐标.(注:若点坐标为
,且
,则称点
为点列的极限点)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5131b36c7f2f8cab46711b57407087ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4987a7e32564f64f342c2559b9a8ce6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de148b63ee4c6e244da5e5a73c4a95c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/795b380a4edc07fb7517ea7936e59265.png)
(2)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2121e9cac7d80abd7c6a0c0de5c67a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1522e062601bd8cbf0e1dfb46dc99479.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a2a34b4317deffa40ba34e269c2b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ca123547dd34334e6be2d57e8417246.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d970a4c8abf3fe4da3382206086a6cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6fdd5301d0235f33fadfe1fc7cff16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50fb36b78225ad73e6fa6e9adda0998a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc5d10484bd7ecd36924b654e80090d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a291014d9edc235d7e02141f43c1c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7320c2685a421289ef1c60393f17371d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ed25d9d6a5e2d19dcf13efa78d1171.png)
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9 . 设数列
均为等差数列,且公差均不为0,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5588a0c1e3771a661c37d42208e7409.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942ed174dfdafaf5f0a68cac579110f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/011432d93e2b3a978e2dd2ebb39f3d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5588a0c1e3771a661c37d42208e7409.png)
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2020-01-11更新
|
107次组卷
|
3卷引用:上海市市北中学2017-2018学年高二上学期期中数学试题
名校
10 . 如图☆的曲线,其生成方法是(I)将正三角形【图(1)】的每边三等分,并以中间的那一条线段为一底边向形外作等边三角形,然后去掉底边,得到图(2);(II)将图(2)的每边三等分,重复上述的作图方法,得到图(3);(III)再按上述方法继续做下去,所得到的曲线称为雪花曲线(Koch Snowflake),
![](https://img.xkw.com/dksih/QBM/2020/1/6/2371404175564800/2372193744011265/STEM/61de2d7304d64a70a63db49b349ef291.png?resizew=26)
(1)
(2)
(3)
.
设图(1)的等边三角形的边长为1,并且分别将图(1)、(2)、(3)…中的图形依次记作M1、M2、M3、…
…
(1)设
中的边数为
中每条边的长度为
,写出数列
和
的递推公式与通项公式;
(2)设
的周长为
,
所围成的面积为
,求数列{
}与{
}的通项公式;请问周长
与面积
的极限是否存在?若存在,求出该极限,若不存在,简单说明理由.
![](https://img.xkw.com/dksih/QBM/2020/1/6/2371404175564800/2372193744011265/STEM/61de2d7304d64a70a63db49b349ef291.png?resizew=26)
![](https://img.xkw.com/dksih/QBM/2020/1/6/2371404175564800/2372193744011265/STEM/0a55eefe3191444fa5fae446208e07c7.png?resizew=129)
![](https://img.xkw.com/dksih/QBM/2020/1/6/2371404175564800/2372193744011265/STEM/7020d600d2a146ebbf97a487419a85eb.png?resizew=118)
![](https://img.xkw.com/dksih/QBM/2020/1/6/2371404175564800/2372193744011265/STEM/fbabab9d58a84598ab4a47e4f8263d0d.png?resizew=127)
![](https://img.xkw.com/dksih/QBM/2020/1/6/2371404175564800/2372193744011265/STEM/f14e97f951fb4951bf71a0c3467d0e6a.png?resizew=134)
设图(1)的等边三角形的边长为1,并且分别将图(1)、(2)、(3)…中的图形依次记作M1、M2、M3、…
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddad3d9fdb5e9951b6a1c31f9a72a71.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddad3d9fdb5e9951b6a1c31f9a72a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0b4b5c950c54ee4fe07792099b0d343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ba6923490821b5d5af1ef0025560d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eded65284816fdf6bf335b0c2a78e6a.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddad3d9fdb5e9951b6a1c31f9a72a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a2d3cd8e283ae9d04bee5ab2e0895b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddad3d9fdb5e9951b6a1c31f9a72a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a2d3cd8e283ae9d04bee5ab2e0895b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a2d3cd8e283ae9d04bee5ab2e0895b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
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