2024·全国·模拟预测
名校
解题方法
1 . 已知平面向量
与
的夹角为
.若
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ae0d7b3266f32b6a916b6237b6b838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407538138dd68ab917925c2063cc98e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c17efa486730dd08dc535c1145a579ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b657cfa91b6394e4b00fa385a2c0149.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-01-02更新
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4卷引用:湖南省株洲市第二中学2022届高三下学期第三次月考数学试题
湖南省株洲市第二中学2022届高三下学期第三次月考数学试题(已下线)2024年全国高考名校名师联席命制数学(文)信息卷(五)(已下线)2024年全国高考名校名师联席命制数学(理)信息卷(六)广东省珠海市第一中学2024届高三上学期期末模拟数学试题
名校
解题方法
2 .
中,
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/346137d5198a4398d80887e6da1dcc4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc0f23e79770ac886bf6c4f5937d0dc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-12-12更新
|
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8卷引用:湖南省岳阳教研联盟2022-2023学年高二上学期期中联考数学试题
湖南省岳阳教研联盟2022-2023学年高二上学期期中联考数学试题宁夏育才中学2023届高三上学期第四次月考数学(理)试题(已下线)6.4.1平面几何中的向量方法+6.4.2向量在物理中的应用举例(精练)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)第六章 平面向量及其应用(A卷·基础提升练)-【单元测试】2022-2023学年高一数学分层训练AB卷(人教A版2019必修第二册)黑龙江省佳木斯市第八中学2023届高三下学期开学考试数学试题(已下线)第09讲 6.4.1平面几何中的向量方法+6.4.2向量在物理中的应用举例-【帮课堂】(人教A版2019必修第二册)(已下线)第6章 平面向量及其应用 单元综合检测-《重难点题型·高分突破》(人教A版2019必修第二册)(已下线)第6.4.1讲 平面几何中的向量方法-2023-2024学年新高一数学同步精讲精练宝典(人教A版2019必修第二册)
解题方法
3 . 已知四边形
,设E为
的中点,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68f3ff314cb679e32d94b0a7166101a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650dea3e53d0374b4b28056585f64937.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
4 . 已知向量
,
的夹角的余弦值为
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602baac86c2b1668ecdfadc8a5948885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3448cf3ddbff1bb0d07730a63ef0348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02d491fc784533c582df02940e76f7f.png)
A.-34 | B.-32 | C.32 | D.34 |
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2022-09-11更新
|
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3卷引用:湖南省常德市临澧县第一中学2022-2023学年高二上学期第一次阶段性考试数学试题
名校
解题方法
5 . 已知非零向量
满足
,且
,则向量
夹角
的大小为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ccba3b87a8a48ac3dd5f72d00bdb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/082c6926889f84f438ea35f70bf05f02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69e70fc4ad48123e25160d086e947ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-07-21更新
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2卷引用:湖南省株洲市第二中学2021-2022学年高一下学期第三次月考数学试卷
解题方法
6 . 已知
,点
是边
上的一点,
,
,
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b030ff1967682591d1408f06ca71bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e414e19c139513d0dbac5d04493fd1a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2226a2be3c81caf8b82e60d79efded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38a716fb0f2473507a4fa0ff91f60e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e9948de40419e6e536186f848e4f69.png)
A.![]() | B.![]() | C.4 | D.16 |
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2022-07-13更新
|
265次组卷
|
2卷引用:湖南省永州市2021-2022学年高一下学期期末数学试题
解题方法
7 . 设
,
,
,
是平面内四个不同的点,且
,则向量
与
( )
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6289bb5542500c3ab1d1142f069adcb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ed9c2e9fabbfc63733bae8fa079d00.png)
A.同向平行 | B.反向平行 |
C.互相垂直 | D.既不平行也不垂直 |
您最近一年使用:0次
解题方法
8 . 如图,直角梯形ABCD中
,
,
,
,
,则
( )
![](https://img.xkw.com/dksih/QBM/2022/7/6/3016722249293824/3017456662454272/STEM/2761762c8ec24e119972d2aae16a5704.png?resizew=107)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4de0184b63a1f6691a92afcdbeead59.png)
![](https://img.xkw.com/dksih/QBM/2022/7/6/3016722249293824/3017456662454272/STEM/2761762c8ec24e119972d2aae16a5704.png?resizew=107)
A.1 | B.![]() | C.![]() | D.2 |
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名校
解题方法
9 . 在
中,已知
,
,
,
,
分别是
,
边上的中线,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eec596ae20af45beac0e0cd4dab3907.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-07-06更新
|
878次组卷
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3卷引用:湖南省长沙市第一中学2022-2023学年高二上学期入学考试数学试题
10 . 已知单位向量
满足
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ccba3b87a8a48ac3dd5f72d00bdb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e403b362eaf7f3fac55f7a81d41fdb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9afc7bfbc67ff08ae5380508d9ca746.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-07-02更新
|
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4卷引用:湖南省多所学校2021-2022学年高一下学期期末联考数学试题