1 . 已知向量
.
(1)若
,求
的值.
(2)设
,向量
与
的夹角为
,求
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba5cd28f5401f9c5cee53caf5a14263a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b958a367fa2f08b6202a5a6ebf5e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a603069cf81f5ff7a40bc24e1be8be7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次
2 . 设
,
为两个不共线的向量,若
,
.
(1)若
与
共线,求实数
的值;
(2)若
,
为互相垂直的单位向量,且
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f2b1408644b6ab804d0e0205297f54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a13680f71c5f27aeff1e2f8e60739a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/723e66590304ac6889f381c3ac0c106e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e9d1f6ce6260c75de43b5bdce2b4386.png)
(1)若
![](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/df64046e91b047037f19e4032e3b6de3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f2b1408644b6ab804d0e0205297f54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a13680f71c5f27aeff1e2f8e60739a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dced91de1b8c38aa95ffee0e5dc202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
名校
解题方法
3 . 如图,在直角梯形
中,
,
,
,
与
交于点
.
和
表示
,
;
(2)设
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1d3aa872e7e2d9d5f34d73c31a4ea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d19e0e6e28dbfcfbf7c292819f2fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083a20abb668d4c26fe5039bd108b40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4781e3daa2c4e018ca0ae09bb56abc0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f33a112e9728d7b560199765c815f69.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/015756e8dd84a004652163864e639d61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2024-04-10更新
|
510次组卷
|
2卷引用:陕西省西安市浐灞第二中学2023-2024学年高一下学期第一次月考检测(3月)数学试卷
2024高三·全国·专题练习
4 . 设e1,e2是两个不共线的向量,已知
=2e1-8e2,
=e1+3e2,
=2e1-e2.
(1)求证:A,B,D三点共线;
(2)若
=3e1-ke2,且B,D,F三点共线,求实数k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34bf00aeba15bce2cdee8ab487388dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1070a28cb9cb8553c29747d1993b16.png)
(1)求证:A,B,D三点共线;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7d3a0680780aaf4549c447fe8dfe9f.png)
您最近一年使用:0次
解题方法
5 . 设
,
为不共线的非零向量,判断下列各题中的
,
向量是否共线.
(1)
,
;
(2)
,
;
(3)
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0453fa302453c627e2b821d5a9b711.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/555f349e7a9396d1837f3b610e2ca434.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd91c72dcd2c587033817dec88f6524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00d36185d8d1559c1a0b394b7a044c64.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e156c75cf0bbc71732226e89931bb061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/555f349e7a9396d1837f3b610e2ca434.png)
您最近一年使用:0次
2023-10-09更新
|
814次组卷
|
8卷引用:北师大版(2019)必修第二册课本习题第二章3.2向量的数乘与向量共线的关系
北师大版(2019)必修第二册课本习题第二章3.2向量的数乘与向量共线的关系6.2.3向量的数乘运算练习(已下线)6.2.3 向量的数乘运算-高频考点通关与解题策略(人教A版2019必修第二册)(已下线)第04讲 6.2.3向量的数乘运算(1)-【帮课堂】(人教A版2019必修第二册)(已下线)6.2.3 向量的数乘运算(分层作业)-【上好课】(已下线)6.2.3 向量的数乘运算——课后作业(基础版)(已下线)3.2 向量的数乘与向量共线的关系北师大版(2019)必修第二册课本例题3.2 向量的数乘与向量共线的关系
解题方法
6 . 已知
,
,求证
,
,
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc575ca55929b3b35f12176f939f9bf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8574fa9df86c17b4bd2ec989b007cd21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
2023-09-17更新
|
471次组卷
|
6卷引用:人教B版(2019) 必修第二册 逆袭之路 第六章 6.1 平面向量及其线性运算 6.1.5 向量的线性运算
人教B版(2019) 必修第二册 逆袭之路 第六章 6.1 平面向量及其线性运算 6.1.5 向量的线性运算(已下线)9.2.2 向量的数乘(已下线)第六章 平面向量初步 6.1 平面向量及其线性运算 6.1.5 向量的线性运算人教B版(2019)必修第二册课本习题6.1.5 向量的线性运算苏教版(2019)必修第二册课本习题 习题9.2(2)(已下线)第02讲 平面向量的运算-《知识解读·题型专练》(人教A版2019必修第二册)
解题方法
7 . 已知两个非零向量
不共线,且
与
共线,求实数k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a63986ee162153a51cea3a52ed82ecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0cb6134b55082a221fe4ccf7d0ea0c.png)
您最近一年使用:0次
名校
8 . 已知两个非零向量
与
不共线.
(1)若
与
平行,求实数
的值;
(2)若
,
,
且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b625b8d3178dd0ea451a80a63082c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9441846da0868582298cece138bec3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f26ecb9719fe48177900d1addf6119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5608a4be28a810738b2547c878ff257a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0352aae549ea2e4021de7c03a292e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd12e95129b6c6caa02794bd55dd005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2023-08-13更新
|
932次组卷
|
3卷引用:四川省绵阳市南山中学实验学校2022-2023学年高一下学期期中考试数学试题
名校
解题方法
9 . 已知向量
和
不共线,如果
,
,
.求证:A,B,D三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83f7395a8a87707f04ae28ce94ca9be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be91d5c617489a955a3df980af45233e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d0c21a2439c356d523c17e42f446ed.png)
您最近一年使用:0次
解题方法
10 . 在
中,角A,B,C的对边分别为a,b,c.已知
.
(1)求
;
(2)若
,求证:
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c8267bd5810e85a99186af63de8865.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/6/148ea5a5-81db-49b9-bef2-6aef55de00d9.png?resizew=166)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e828b8edf7a8f2cdcfceb13a4e05bf6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df8e2b4eda45e83f9f7dd51ec6e9ed17.png)
您最近一年使用:0次
2023-07-05更新
|
792次组卷
|
2卷引用:湖南省怀化市2022-2023学年高一下学期期末数学试题