1 . 已知向量
,则向量
的坐标是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb2eef48a60e437860640792f2ebfa09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f1b06a56fc382feed28e01f1ad102.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
2 . 已知向量
,若向量
与
反向,且向量
在向量
上的投影向量为
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860fc1db2edc066188f8d24e35dbf205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c515c60628ceb34a573c7e4246ffd12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/623afc24f2227004b0e1b3922dfb954b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853dc69729c55faaf76a5ed2844ed7f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d6df06a5b85848dc4fa33327f8e07.png)
A.7 | B.![]() | C.17 | D.![]() |
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解题方法
3 . 已知
,若
与
方向相同,则实数
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/901cab8d0a1de519786e4cacf478da71.png)
![](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/f0a532e15e232cb4b99a8d4d07c89575.png)
A.2 | B.4 | C.-2或4 | D.-2 |
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解题方法
4 . 在
中,
是
的中点,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7590a22611f3935d8e32eac956c2a4c1.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca982500e250f818962cdebe68c9802b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7590a22611f3935d8e32eac956c2a4c1.png)
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解题方法
5 . 已知点M是边长为2的正
内一点,且
,若
,则
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65032c1da1a6e85cbaaae7ceaad0f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4537d7bd38722926e8eefbf88041b638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02f5a9fe84e87ba1080438064a69a7a.png)
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6 . 已知梯形ABCD中,
,三个顶点
.则顶点
的坐标_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c44e5635c0032f9d7d3b7fadfdf5cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c5479a8fd9d749a28d9b87fe813bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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解题方法
7 . 已知
是不共线的非零向量,则以下向量可以作为基底的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10814bc3db929e79874befe96cf4e3d4.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
2024-04-16更新
|
218次组卷
|
3卷引用:山东省学情2023-2024学年高一下学期第一次阶段性调研数学试题
山东省学情2023-2024学年高一下学期第一次阶段性调研数学试题第二章 平面向量及其应用章末重点题型复习(1)-同步精品课堂(北师大版2019必修第二册)(已下线)专题01 向量基底、四心及其应用(1)-期末考点大串讲(苏教版(2019))
解题方法
8 . 如图,在
中,
为
的中点,
与
交于点
,若
,则下面对于
的描述正确的是( )
②,
③,
④,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fdef24fc79459673e51803d4a3af9b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3600a5a995fe1a5261b09fd90ad221bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833d37b9c21319f3965bb4d19c9ebe72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af2d38cf365e4389c0d3f18ecfa890e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/313ebe00856771b4148d8fcad7689582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2452a7c33b76eb4d56f32926b9cdf28f.png)
③,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3732b0e4d40be0f6be43983aad9f6d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fdef24fc79459673e51803d4a3af9b0.png)
A.①③ | B.②③ | C.①④ | D.②④ |
您最近一年使用:0次
2024-04-16更新
|
176次组卷
|
2卷引用:山东省学情2023-2024学年高一下学期第一次阶段性调研数学试题
9 . 已知点G是边长为2的正
的中心,线段DE经过点G分别交边AB,AC于点D,E,设
,
,其中
,
.
(1)求
的值;
(2)求
面积的最小值,并指出相应的m,n的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad3880439c2e4ac27a180d6c6bcc477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a480e439a7f2a25516d2381e8a19e2ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9977b59a789b7cfdd49185deb2b1b0d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5842fed631f0d796c849e0c4cc6d6c0a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27e62ba44cbfec6823ebc1f0c7457fb.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
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解题方法
10 . 在平行四边形
中,已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79b194152945f719c21bbe5d525338d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1edf07a2e8006fc9446a1bac93f3324c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf6eab0544c9fad5acde25bec349fb02.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次