名校
1 . 在网课期间,为了掌握学生们的学习状态,某省级示范学校对高二一段时间的教学成果进行测试.高二有1 000名学生,某学科的期中考试成绩(百分制且卷面成绩均为整数)Z服从正态分布
,则(人数保留整数) ( )
参考数据:若
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53d6c4921190756ad9bc55ed5c6001e.png)
参考数据:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41041d024810e3642244a8ac34d6cb90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5eff8b89c5c4babd16c3aa3457c59b.png)
A.年级平均成绩为82.5分 |
B.成绩在95分以上(含95分)人数和70分以下(含70分)人数相等 |
C.成绩不超过77分的人数少于150 |
D.超过98分的人数为1 |
您最近一年使用:0次
2022-06-06更新
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14卷引用:百校联盟2021届高考复习全程精练模拟卷新高考(辽宁卷)数学(二)试题
百校联盟2021届高考复习全程精练模拟卷新高考(辽宁卷)数学(二)试题(已下线)押新高考第9题 统计概率-备战2021年高考数学临考题号押题(新高考专用)(已下线)模块七 计数原理与统计概率-1(已下线)7.5 正态分布(分层作业)-【上好课】2022-2023学年高二数学同步备课系列(人教A版2019选择性必修第三册)(已下线)第11讲 正态分布3种常考题型(2)【江苏专用】专题07概率与统计(第四部分)-高二下学期名校期末好题汇编江苏省无锡市天一中学2021届高三下学期第三次调研模拟考试数学试题江苏省南京市中华中学2020-2021学年高二下学期期中数学试题福建省泉州市两校2021-2022学年高二下学期期中联考数学试题广东省佛山市顺德区李兆基中学2021-2022学年高二下学期6月月考数学试题江苏省苏州外国语学校2021-2022学年高二下学期期末数学试题(已下线)高二数学下学期期末模拟试卷01-【题型分类归纳】2022-2023学年高二数学同步讲与练(苏教版2019选择性必修第二册)河北省邯郸市魏县第五中学2022-2023学年高二下学期5月月考数学试题河北师范大学附属实验中学2022-2023学年高二下学期期中数学试题
2 . 矩形
中,
,
,将
沿
折起,使
到
的位置,
在平面
的射影
恰落在
上,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
A.三棱锥![]() ![]() | B.平面![]() ![]() |
C.平面![]() ![]() | D.![]() ![]() ![]() |
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6卷引用:百校联盟2021届高考复习全程精练模拟卷新高考(辽宁卷)数学(二)试题
百校联盟2021届高考复习全程精练模拟卷新高考(辽宁卷)数学(二)试题(已下线)押新高考第12题 立体几何-备战2021年高考数学临考题号押题(新高考专用)(已下线)押第10题 立体几何-备战2021年高考数学(理)临考题号押题(全国卷2)(已下线)数学-学科网2021年高三5月大联考考后强化卷(广东卷)(已下线)数学-学科网2021年高三5月大联考考后强化卷(山东卷)(已下线)考点41 点、直线、平面之间的位置关系-备战2021年高考数学经典小题考前必刷(新高考地区专用)
3 .
的图象与直线
相切,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e35b9f4c6a8ad43e30a5834b0fd3705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.1 | B.![]() | C.![]() | D.![]() |
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4 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e10d7e1c15cadc262e3ba35d9ee2b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd3ad28dd3b55c3725b04199127b9bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
5 . 已知
,
,
,则
,
,
的大小个关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/527913a79d0e7d5b27c4ca30a1be4a95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56f54fcc890b539b671975cbc5f53a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d249159548f95133ff59702c70e294c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 .
是虚数单位,复数
满足:
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787f66d49240acafcf9385cbe49709b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-04-16更新
|
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2卷引用:百校联盟2021届高考复习全程精练模拟卷新高考(辽宁卷)数学(二)试题
7 . 如图,四边形
是正方形,四边形
是矩形,平面
平面
,
,
,则多面体
的体积为( )
![](https://img.xkw.com/dksih/QBM/2021/4/15/2700230200819712/2700257808105472/STEM/81659b67ead64d2389e8ae87779ba07f.png?resizew=180)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f84f169e50dc59d4f7a8e1e36f5c847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1b6711e6dd48be6cf8fa52926924d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724fbca2c6e16f4426e9b9471e13eba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://img.xkw.com/dksih/QBM/2021/4/15/2700230200819712/2700257808105472/STEM/81659b67ead64d2389e8ae87779ba07f.png?resizew=180)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-04-16更新
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8 . 命题
:存在
,
,使
;命题
:对任意
,
,
;命题:
:若
,
,则
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5deac798d7ef5de3e6d799d3690dd666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61bcad9f90a9b92b04ee1f8be1e38a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5deac798d7ef5de3e6d799d3690dd666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d253c4b70e9e89ba1c8db0d17aa194fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44cbc322861846709c08c7f1da746848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f50ce6b511e6b928796e048fc7fa5c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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9 . 数列
满足:
,
.
(1)求
的通项公式;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/352d9b76dcf639368fa68cae70149802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3619245b632f85ff8b2357ee531f07d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5fe8fecffe2d718a9a346173e5f7e6e.png)
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2卷引用:百校联盟2021届高考复习全程精练模拟卷新高考(辽宁卷)数学(二)试题
10 . 四棱锥
中,
,
,
,
为
中点,
.
(1)证明:
平面
;
(2)平面
交
于
,求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d117cd4a10f09ab471b4bb40392d174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8398f1eca778dcbddd55a076d86f1c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e615410c05e16ed134843c38a767cef.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d923a338dd2d2e29336b42574d38448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次