名校
1 . 在平行四边形
中,点
为边
中点,点
为边
上靠近点
的三等分点,连接
,
交于点
,连接
,点
为
上靠近点
的三等分点,记
,
,则下列说法正确的是( )
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184359fe3cadc363cf4ebe586c2b3db4.png)
A.点![]() ![]() ![]() |
B.若![]() ![]() |
C.![]() |
D.![]() ![]() ![]() |
您最近一年使用:0次
2023-07-21更新
|
905次组卷
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6卷引用:第二节 平面向量基本定理及坐标表示 A素养养成卷
(已下线)第二节 平面向量基本定理及坐标表示 A素养养成卷江西省景德镇一中2022-2023学年高一下学期期末考试数学试题(已下线)第一次月考选择题压轴题十四大题型专练-举一反三系列(已下线)专题05 平面向量基本定理-《重难点题型·高分突破》(苏教版2019必修第二册)(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)专题01 平面向量-《期末真题分类汇编》(人教A版2019必修第二册)
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2 . 如图,已知直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
是
之间的一个定点,点
到
的距离分别为
是直线
上一个动点,过点
作
,交直线
于点
,平面内动点
满足
,则
面积的最小值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6ff41e86b9662bab6ea3138a57ec5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f1dd84b60e55c14e1df7e553d84369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822ba132ca9dd0d4a050659aef3c9b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3318ec4b9f66a8f607eaa683fa0bdb38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffffbccf0eb96123a237860c12a1b892.png)
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2023-12-14更新
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643次组卷
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4卷引用:【练】 专题一 平面向量线性运算的最值问题(压轴大全)
(已下线)【练】 专题一 平面向量线性运算的最值问题(压轴大全)辽宁省部分学校2023-2024学年高二上学期12月联合考试数学试题江苏省苏州吴江中学2023-2024学年高一下学期3月月考数学试题甘肃省天水市第一中学2023-2024学年高一下学期4月月考数学试题
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解题方法
3 . 如图,在
中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55ed93c1c0a0a7bbc30a2ca63df21cd5.png)
的内角平分线交
于点
,过
作
于点
,则
的值是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55ed93c1c0a0a7bbc30a2ca63df21cd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497846628a41a9bc750a645e045afb47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b076c42da4c95b45320ade464479df.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/20/69079200-ffc2-4193-9880-c62b3d08ffa8.png?resizew=306)
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4 . 在
中,角A、B、C的对边分别为a、b、c.已知
,
,
.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
__________ ﹔若点Р为线段AB上的点,且
,则
的最大值是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843f1927989a8f204ed61875597f749a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386eb659fda09b15da83566e79f20e3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b78b012806a8fd298b7fe26855f327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8fe4b40606d4e67aa7f3e23e0a4d14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
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名校
解题方法
5 . 如图,在矩形
中,
,
,
,
分别是
和
的中点,若
是矩形
内一点(含边界),满足
,且
,则
的最小值为__________ .
![](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/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ab4fb82a0fca47481b570309211b2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9774273faab168b06d25a3897a507b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5514a14f65f15ecf4078f201403df438.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/83de8599-f6f3-4ef2-aed8-2b0f7a99c98a.png?resizew=92)
您最近一年使用:0次
2020-05-01更新
|
1474次组卷
|
5卷引用:2020届江苏省南通市基地学校高三下学期第二次大联考数学试题
名校
6 . 向量集合
,对于任意
,以及任意
,都有
,则称S为“C类集”,现有四个命题:
①若S为“C类集”,则集合
也是“C类集";
②若S,T都是“C类集”,则集合
也是“C类集”;
③若
,
都是“C类集”,则
也是“C类集”;
④若
,
都是“C类集”,且交集非空,
,也是“C类集”.
其中正确的命题有____________________ (填所有正确命题的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41bbea48a9e8cdc6e591bdc85ef6cdda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2cd5b73e6422370539a64e009edb741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb6bf23a5a12e1ba5413594d7b1a57c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e756357aaab202398e6cded445f9caeb.png)
①若S为“C类集”,则集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df8ade2d8330ac61c4192cfd1df19fc0.png)
②若S,T都是“C类集”,则集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194bad922d5bc98b6a7e51ae35f67d54.png)
③若
![](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/f2646f41226f24960a6186dc7860ef45.png)
④若
![](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/9b76d26b78e63683dfacf10d3da6d74d.png)
其中正确的命题有
您最近一年使用:0次
名校
7 . 定义域为
的函数
的图象的两个端点为A,B,
是
图象上的任意一点,其中
,向量
,其中O是坐标原点
若不等式
恒成立,则称函数
在
上“k阶线性近似”
若
在
上“k阶线性近似”,则实数k的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eb7f0759565b9d36008d49b627583a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6cc602f5b22673491f481152b49327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16aff237a786c2bece123185d921bbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d98ad800d7c8aea55819e58b3947e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd06de2ef0e540c75933b8e794eb1fb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eb7f0759565b9d36008d49b627583a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ffc845e4b7e5bb9aa0f4ddf38cd8df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35246b1f7e094e6e7ea093f2f53a1a3f.png)
您最近一年使用:0次
8 . 如图,已知
中,点
在线段
上,点
在线段
上,且满足
,若
,
,
,则
的值为__________ .
![](https://img.xkw.com/dksih/QBM/2018/1/6/1854394921328640/1855458432696320/STEM/7a661750abcc45e9953581e11d683378.png?resizew=45)
![](https://img.xkw.com/dksih/QBM/2018/1/6/1854394921328640/1855458432696320/STEM/cb7958677c014daab460ccf64ad9b359.png?resizew=21)
![](https://img.xkw.com/dksih/QBM/2018/1/6/1854394921328640/1855458432696320/STEM/1f7d0a786b18405487bcbe86c323b4fa.png?resizew=28)
![](https://img.xkw.com/dksih/QBM/2018/1/6/1854394921328640/1855458432696320/STEM/86e7079bf8674b61810cbfce1dce22cc.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2018/1/6/1854394921328640/1855458432696320/STEM/47c4948cc8944bf3a09eed7e058734f4.png?resizew=31)
![](https://img.xkw.com/dksih/QBM/2018/1/6/1854394921328640/1855458432696320/STEM/a14bc71b92f347f286786bbd31d78dc9.png?resizew=101)
![](https://img.xkw.com/dksih/QBM/2018/1/6/1854394921328640/1855458432696320/STEM/8a23d6cca6024b2c98cd5d7979415960.png?resizew=56)
![](https://img.xkw.com/dksih/QBM/2018/1/6/1854394921328640/1855458432696320/STEM/c4e9a797c56a4f24abed704f7f006c30.png?resizew=55)
![](https://img.xkw.com/dksih/QBM/2018/1/6/1854394921328640/1855458432696320/STEM/672eaafc93744f1ea3ff50b49ac001a3.png?resizew=93)
![](https://img.xkw.com/dksih/QBM/2018/1/6/1854394921328640/1855458432696320/STEM/955e280aa8e6449f9e1acf26424dc8d1.png?resizew=60)
![](https://img.xkw.com/dksih/QBM/2018/1/6/1854394921328640/1855458432696320/STEM/b5c168f2d9594d9cbd742ce5a4997e06.png?resizew=253)
您最近一年使用:0次
2017-05-03更新
|
1113次组卷
|
3卷引用:天津市河东区高三二模数学(理科)试题