1 . 如图,在直四棱柱
中,底面
为正方形,
为棱
的中点,
.
的体积.
(2)在
上是否存在一点
,使得平面
平面
.如果存在,请说明
点位置并证明.如果不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8da7fd8e46e7db2d692486c252274cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ee3afb7e2c8943673449a1b136faf0.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb08e0d3c956a81a029e6353fc4adb0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65277734669566578cbb7d690bb200fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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上海市育才中学2023-2024学年高三下学期5月质量调研考试数学试题山东省潍坊市部分学校2023-2024学年高一下学期第二次月考数学试题四川省遂宁市射洪中学校2024届高三高考考前热身数学(文)试题陕西省咸阳市武功县普集高级中学2023-2024学年高一下学期5月期中数学试题(已下线)11.3.3 平面与平面平行-【帮课堂】(人教B版2019必修第四册)(已下线)专题06 立体几何初步解答题热点题型-《期末真题分类汇编》(江苏专用)(已下线)专题01 高一下期末真题精选(2)-期末考点大串讲(人教A版2019必修第二册)
2 . 已知
,集合
其中
.
(1)求
中最小的元素;
(2)设
,
,且
,求
的值;
(3)记
,
,若集合
中的元素个数为
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b0d89736a10c53998013df4a354396.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8165d6243c2ce6dac87a9bcc2be577ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b76979d0a46e9b56e2f7f3e44c48423.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5031a3a951c4a1d1c5e9f80a5e26513.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df8e702da77e0bd37abdd29d9b12992e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e6b5d77069ced356d738aea8e3efb63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e56e0fa5fb1fc2a2dbd0a152812a1a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d103dda0bac3393c7544c4d0c8a37e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca1d86c9f078347773f700fee49d1d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d1ebce51879137ab48c506e9cdb0187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045c531b9582478b5f0ea99c7ccf686c.png)
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5卷引用:上海市育才中学2023-2024学年高三下学期5月质量调研考试数学试题
上海市育才中学2023-2024学年高三下学期5月质量调研考试数学试题浙江省绍兴市2024届高三下学期4月适应性考试数学试卷(已下线)数学(九省新高考新结构卷03)(已下线)压轴题05数列压轴题15题型汇总-3(已下线)拔高点突破01 集合背景下的新定义压轴解答题(四大题型)
3 . 已知椭圆
的左、右焦点分别是
,其离心率
,过
且垂直于
轴的直线被椭圆
截得的线段长为1.
(1)求椭圆
的方程;
(2)点
是椭圆
上除长轴端点外的任一点,过点
作斜率为
的直线
,使得
与椭圆
有且只有一个公共点,设直线
的斜率分别为
,若
,证明:
为定值,并求出这个定值;
(3)点
是椭圆
上除长轴端点外的任一点,设
的角平分线
交椭圆
的长轴于点
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/323227dd8a7a31c078eac609b9acf472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c38928a92bc4b44ed3c9b89769f5372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de85df85401e7e8da683ea4a784963c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587662afaaecad25c6f5f9e5e7ff28b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42623f14667ebfa914eb12d026023d6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0fe8d1be8a033e33fcc111cdbcf7b04.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94fe48bf7af022ecbbe13833fdcc2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62769b7177ef4bc952dc1dd51d6b510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
4 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6717866ce0de2a1b7030373d74e2774.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfca320f486769aadf84bc49d50cdd7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6717866ce0de2a1b7030373d74e2774.png)
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5 . 若抛物线的焦点到它的准线距离为1,则实数m=
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6 . 已知向量
,则
在
方向上的投影向量为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0355716f8d119f8d92d05c9b29d32b25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3143307ad0ba4a631eac04e814993655.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
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9卷引用:上海市闵行区七宝中学2024届高三下学期3月月考数学试题
上海市闵行区七宝中学2024届高三下学期3月月考数学试题甘肃省兰州新区贺阳高级中学2023-2024学年度高一下学期3月月考数学试题广东省汕头市潮阳实验学校2023-2024学年高一下学期第一次月考数学试题天津市第四十七中学2023-2024学年高一下学期第一次阶段性检测(3月)数学试题(已下线)模块3 第3套 复盘卷山东省淄博市实验中学、淄博齐盛高级中学2023-2024学年高一下学期4月月考数学试卷青海省西宁市第五中学2023-2024学年高一下学期4月月考数学试题(已下线)6.3.5 平面向量数量积的坐标表示——随堂检测(已下线)第8章:向量的数量积与三角恒等变换章末重点题型复习(1)-【帮课堂】(人教B版2019必修第三册)
名校
7 . 某射击运动员在一次训练中10次射击成绩(单位:环)如下: 5,5,6,6,7,7,8,9,9,9,这组数据的第60百分位数为______ .
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8 . 环境监测部门为调研汽车流量对空气质量的影响,在某监测点统计每日过往的汽车流量
(单位:辆)和空气中的
的平均浓度
(单位:
). 调研人员采集了50天的数据,制作了关于
的散点图,并用直线
与
将散点图分成如图所示的四个区域Ⅰ、Ⅱ、Ⅲ、Ⅳ,落入对应区域的样本点的个数依次为6,20,16,8.
列联表,并判断至少有多大把握认为“
平均浓度不小于
与“汽车日流量不小于1500辆”有关;
(2)经计算得回归方程为
,且这50天的汽车日流量
的标准差
,
的平均浓度
的标准差
.
①求相关系数
,并判断该回归方程是否有价值;
②若这50天的汽车日流量
满足
,试推算这50天的
日均浓度
的平均数
.(精确到0.1)
参考公式:
,其中
.
回归方程
,其中
.
相关系数
. 若
,则认为
与
有较强的线性相关性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/053b68d2c3ed4473a907089646c03f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c96b3b9db5d21d4655a7676d7839f6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0e7ff53e5df410c7b7b458c04ef5a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9650d3fc27b93984881ca59e64d7cba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd63ebbdb834dd3028f1bdb3cb948d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b72fcdc709e77910cd36a26369648b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/053b68d2c3ed4473a907089646c03f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cff1dc78c7ef95bb9b7cbcca7b63c77.png)
汽车日流量![]() | 汽车日流量![]() | 合计 | |
![]() ![]() | |||
![]() ![]() | |||
合计 |
(2)经计算得回归方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91030ffaa2e55e6d4d206a1910c6dca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ecdaae1d77608a4042eda07e65c2ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/053b68d2c3ed4473a907089646c03f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45cd110b9775ee011aeadea99f4d95da.png)
①求相关系数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
②若这50天的汽车日流量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4e50db28f2f00bc0409dc046b8a107.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/053b68d2c3ed4473a907089646c03f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923d80da4a6cb5f102be334006d875a7.png)
参考公式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38cfee12dbeeab57c707dca8643538a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/356b05e46b10ee51c3e43546d73ec96c.png)
![]() | 0.100 | 0.050 | 0.010 | 0.001 |
![]() | 2.706 | 3.841 | 6.635 | 10.828 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cf74bbdee085c44778ac6191e5016b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de3f0c77562755309ec6326cc21f8bc.png)
相关系数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1720dceff16f5c27454ccf2f9ffb751e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80a9721dfd7f61a47a7064feaa8ebbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2024-03-02更新
|
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13卷引用:上海市浦东新区上海实验学校2024届高三下学期2月测验数学试卷
上海市浦东新区上海实验学校2024届高三下学期2月测验数学试卷上海市松江二中2023-2024学年高二下学期5月考数学试卷(已下线)专题08 统计案例分析(讲义)(已下线)第八章 成对数据的统计分析(知识归纳+题型突破)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第二册)(已下线)第八章 成对数据的统计分析(单元重点综合测试)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第二册)内蒙古自治区包头市2024届高三下学期适应性考试文科数学试题(二)陕西省安康市高新中学2024届高三下学期5月适应性试题(二)文科数学试题(已下线)专题08成对数据的统计分析--高二期末考点大串讲(沪教版2020选修)(已下线)8.3 列联表与独立性检验(分层练习,6大题型)-2023-2024学年高二数学同步精品课堂(人教A版2019选择性必修第三册)(已下线)9.2 独立性检验(五大题型)-【帮课堂】2023-2024学年高二数学同步学与练(苏教版2019选择性必修第二册)(已下线)第9章 统计 章末题型归纳总结-【帮课堂】2023-2024学年高二数学同步学与练(苏教版2019选择性必修第二册)(已下线)8.3.1分类变量与列联表+8.3.2独立性检验 第三课 知识扩展延伸(已下线)8.3.2 独立性检验——课后作业(巩固版)
名校
9 . 在
中,其内角
,
,
所对的边分别为
,
,
,若
,
,
,则
的面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7a2b3158a2580cc0c8564d29657e59c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82986ab38a4ae58593191ccae2a44f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82ba88243fb40e28c81266b21b597e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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10 . 设抛物线
,过焦点
的直线与抛物线
交于点
、
.当直线
垂直于
轴时,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/4aa9e607-413f-4aea-bdbc-427ada0cd9a0.png?resizew=164)
(1)求抛物线
的标准方程.
(2)已知点
,直线
、
分别与抛物线
交于点
、
.
①求证:直线
过定点;
②求
与
面积之和的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544fc1ddf9f59d08c9feb5df9b4080d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c663466d641b5fdfef1e529d6c330ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/166afeb61d5a80366a8ae29c912cd644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e39fda3cda5ddc03b085413f2030aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/4aa9e607-413f-4aea-bdbc-427ada0cd9a0.png?resizew=164)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96499747e4aea990f4b878eea8d73ab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
①求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
您最近一年使用:0次
2024-02-28更新
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1076次组卷
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4卷引用:上海市宝山区吴淞中学2024届高三下学期3月月考数学试题