名校
解题方法
1 .
是
的重心,
是
所在平面内的一点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c25d96ed9d96c0eaa8e1511f5510235a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() |
B.![]() ![]() ![]() |
C.![]() |
D.![]() ![]() |
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4卷引用:广东省广州市第八十九中学2023-2024学年高一下学期期中考试数学试卷
广东省广州市第八十九中学2023-2024学年高一下学期期中考试数学试卷四川省成都外国语学校2023-2024学年高一下学期第一次月考(3月)数学试题(已下线)模块五 专题六 全真拔高模拟2(已下线)模块五 专题6 全真拔高模拟2(北师版高一期中)
名校
解题方法
2 . 在三角形
所在平面内,点
满足
,其中
,
,
,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2dd523e07000b9c5f8f41963f5b0756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af66740571d484eed9157632d5ce8edd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7569cd7e9b31ad838230133b9bc8314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b2400d72b1e3145cb21ba719d8a968.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
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4卷引用:广东省广州市第六十五中学2023-2024学年高一下学期期中考试数学试卷
名校
解题方法
3 . 已知圆
半径为2,弦
,点
为圆
上任意一点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() |
C.![]() | D.满足![]() ![]() |
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6卷引用:广东省佛山市顺德区郑裕彤中学2023-2024学年高一下学期月考一数学试卷
广东省佛山市顺德区郑裕彤中学2023-2024学年高一下学期月考一数学试卷四川省成都市玉林中学2023-2024学年高一下学期4月诊断性评价试题数学试题辽宁省沈阳市第二中学2023-2024学年高一下学期期中考试数学试卷(已下线)高一下学期期末复习选择题压轴题二十三大题型专练(1)-举一反三系列(人教A版2019必修第二册)(已下线)【讲】 专题三 平面向量与其他知识的交汇问题(压轴大全)(已下线)【练】 专题六 平面向量与三角形四心问题(压轴大全)
名校
4 . 设点M是所在平面内一点,则下列说法正确的是( )
A.若![]() ![]() |
B.若![]() ![]() |
C.若O在![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
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5 . 已知函数
.
(1)求
的单调递增区间;
(2)当
时,求
的最值.
(3)当
时,关于
的不等式
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb18bf398fcc3f12f1d7dd7b23cc79bd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691c1fc50ea793ea08748cb75bae70e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e74fc7479e44217bfa27dbd75992b51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf755154fdddb396e7ed1a2352f1911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3卷引用:广东省深圳市盐田高级中学2023-2024学年高一下学期4月月考数学试题
6 . 如图所示,某市政府计划在该扇形地域内建设图书馆,为了充分利用这块土地,并考虑与周边环境协调,要求该图书馆底面矩形CDEF的四个顶点都落在边界上.经过测量,扇形的半径为60m,
,
.记弧
的中点为G,连接OG,分别与EF,CD交于点M,N,连接OF,设
.
;
(2)请说明F点向G靠近时矩形CDEF的面积变化情况;
(3)求矩形CDEF的最大面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff5c21185c13eae675906dabd3593c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33cbad6599796efc1c177ae9349feda9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554d5d0e557fe3c4162046d40c90324b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fd7229922fbb3ce09dada883f74fbb1.png)
(2)请说明F点向G靠近时矩形CDEF的面积变化情况;
(3)求矩形CDEF的最大面积.
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名校
解题方法
7 .
元向量(
)也叫
维向量,是平面向量的推广,设
为正整数,数集
中的
个元素构成的有序组
称为
上的
元向量,其中
为该向量的第
个分量.
元向量通常用希腊字母
等表示,如
上全体
元向量构成的集合记为
.对于
,记
,定义如下运算:加法法则
,模公式
,内积
,设
的夹角为
,则
.
(1)设
,解决下面问题:
①求
;
②设
与
的夹角为
,求
;
(2)对于一个
元向量
,若
,称
为
维信号向量.规定
,已知
个两两垂直的120维信号向量
满足它们的前
个分量都相同,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d617b088816e03a283123e29e4dbdca.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086eb439f6a1578fdba904825340772d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efee470d0232b6b37f2fb2ab15aae0ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/948eea3409b959c7248d68a1a081819d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41b1e734f151a88ccb702148615db27d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5ab6e54fc0c6b846c8d860860c087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db1cd89b86c99ce96a9336eb3b09c9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6be594c4e8c6693571d71fa7c1951796.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27a7cf91ca4cddeef99e8873ecc6fc37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05932f1afdfa963def3c811591eb62bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d69dab2a6743011b461f62448890316.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c21920a0a39b1604e130601f061b056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eab8e66f785800a153d34421b2e5540.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a22804cdf4a90edff02dbb01b7481b.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23c7e4c34891b3435c39f4989470ccf.png)
②设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac852f327effde190b9ebf3dd08e037c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85f7e488464e41e1a1e1eed427154aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
(2)对于一个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e363087dcbe11e11a9ec545570735c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94fcc44ac04f54d5fcc1a6154b8b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac852f327effde190b9ebf3dd08e037c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2772cf7495c2c4c70086e7d936752d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b3c80a2adf39204ce112bda7115bf40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c8af44e1a8c05007f2137fa2d1907db.png)
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|
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5卷引用:广东省梅州市梅县东山中学2023-2024学年高一下学期期中考试数学试题
名校
解题方法
8 . 记
的内角
,
,
所对的边分别为
,
,
.已知向量
,
.
(1)设单位向量
,若
与
共线,且
,求
;
(2)当
时:
(i)若
,求
;
(ii)求
的最小值.
![](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/6849215c180ffa7aed5695cfe5169c61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/309fc14fb3c33dd3532a3823019d7d70.png)
(1)设单位向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e66a1639eb1a8f7e8e23e67c246f3b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea48f17ea5a7459bc77626ef7aa44b89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37564ec4e9e92485f1769e8ffaac31d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a36ec31cfd615abfbee3ed2f4a1d8883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a4d070c5939bb0ec4a9d40d7e3c7d3f.png)
(i)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3711c8ba16405959bcb0b70385da1d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(ii)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/413323ab92f73c1eabb235731bb5c399.png)
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3卷引用:广东省深圳市深圳外国语学校理工高中2023-2024学年高一下学期3月调研考试数学试卷
广东省深圳市深圳外国语学校理工高中2023-2024学年高一下学期3月调研考试数学试卷河北省衡水市枣强中学2023-2024学年高一下学期第二次调研考试数学试题(已下线)第13题 解三角形与其他知识的交汇(高一期末每日一题)
名校
解题方法
9 . 下列说法中正确的是( )
A.在![]() ![]() ![]() ![]() ![]() ![]() |
B.已知点![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
C.已知![]() ![]() ![]() ![]() ![]() ![]() |
D.在![]() ![]() ![]() ![]() ![]() |
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3卷引用:广东省深圳市深圳外国语学校理工高中2023-2024学年高一下学期3月调研考试数学试卷
广东省深圳市深圳外国语学校理工高中2023-2024学年高一下学期3月调研考试数学试卷河北省衡水市枣强中学2023-2024学年高一下学期第二次调研考试数学试题(已下线)专题1 以线性运算为背景的复杂问题【练】(高一期末压轴专项)
名校
解题方法
10 . 已知函数
的定义域为
,若存在实数
,使得对于任意
都存在
满足
,则称函数
为“自均值函数”,其中
称为
的“自均值数”.
(1)判断定义域为
的三个函数
,
,
是否为“自均值函数”,给出判断即可,不需说明理由;
(2)判断函数
是否为“自均值函数”,并说明理由;
(3)若函数
为”自均值函数”,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37cb15d282a40c780c2b68287e47867e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28e384ba050b238e11f7c74d3002aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f57537b1a7ca7e4eed38a922ac707a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)判断定义域为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d8d5cea065075fe50706abe3ae802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b78b98443d32512ddcfe86aefd507db.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee6881a170f6ef9ed5c133b95c2f448.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/543634891d61ea51e686c850533f24ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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2卷引用:广东省广州市执信中学2023-2024学年高一下学期3月月考数学试题