名校
解题方法
1 . 已知
,
,
,且满足
.
(1)求实数
的值;
(2)求与
垂直的单位向量的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172014fe535f3d3095bfc9cf9a51de6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eddbbab37f208b0cbbd5caa08840490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946476df263885292d69738a7219fcea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eabb53f3a32995aea1b33c5680e38ea2.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)求与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
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名校
解题方法
2 . 定义
是向量
和
的“向量积”,它的长度
,其中
为向量
和
的夹角,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39fc130f12e214b4dcebfa55074a247c.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48473b9ab39742ac176cb9da3911a22a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf104114c6a1faf7fc2e9ea26c8ba95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/230d847d52db058471b4ce6ac769c34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b19296c6a9fcfc9a80d2495e81af238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39fc130f12e214b4dcebfa55074a247c.png)
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2020-12-03更新
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389次组卷
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3卷引用:上海市嘉定区2020-2021学年高二上学期期中数学试题
3 . 已知
,则与
方向相同的单位向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541be00ecc1fae7f0b03e092b83e7ecd.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0698952a6d508d2646d886bba725de9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541be00ecc1fae7f0b03e092b83e7ecd.png)
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名校
解题方法
4 . 已知向量
、
均为非零向量,且
与
不平行.
(1)若
,
,
,求证:A、B、D三点共线;
(2)若向量
与
平行,求实数m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa3ab2259cf72e02cf5f42274dcb8a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faad1a1b5bfb63d3b6757773851d74af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3fb1aaadc46a7f12c45e0d89fbea7c.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7e91f57f9c176f901421e928eaf9b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ffafede77b681209c675d4ab99c94af.png)
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2020-12-03更新
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1380次组卷
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5卷引用:上海市向明中学2020-2021学年高二上学期期中数学试题
5 . 如图,
,定义平面坐标系
为仿射坐标系,在该仿射坐标系中,任意一点
的斜坐标这样定义:
、
分别为与
轴、
轴正方向同向的单位向量,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f8d2c1cd7c5effee065778551052b9.png)
,则规定点
的斜坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/14/355cf388-66dd-402f-947c-bc9c7a7152e0.png?resizew=180)
(1)求以
为圆心,半径为1的圆在该仿射坐标系中的方程;
(2)已知点
的斜坐标为
,点
的斜坐标为
,求直线
在该仿射坐标系中的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e8cafca0adab2a0585529b0ab4abd3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b28baf17059c56ee9ad1ae4814acd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b04618e5b2db68f2de6ba68972c505c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f8d2c1cd7c5effee065778551052b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82339bb04d6f436b154b95b4bb73a28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/14/355cf388-66dd-402f-947c-bc9c7a7152e0.png?resizew=180)
(1)求以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc8350b12974ffc8d06fce36d158f02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2020-12-03更新
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5卷引用:上海市徐汇区上海中学2020-2021学年高二上学期期中数学试题
上海市徐汇区上海中学2020-2021学年高二上学期期中数学试题(已下线)上海期末真题精选50题(大题压轴版)-2020-2021学年高一数学下册期中期末考试高分直通车(沪教版2020必修第二册)(已下线)第8章 平面向量(章节压轴题专练)-2020-2021学年高一数学下册期中期末考试高分直通车(沪教版2020必修第二册)(已下线)第19讲压轴综合题(讲义)-【教育机构专用】2021年春季高一数学辅导讲义(沪教版2020必修第二册)(已下线)第08讲 平面向量的正交分解及坐标表示
名校
解题方法
6 . 已知△AOB中,边
,令
过AB边上一点
(异于端点)引边OB的垂线
垂足为
再由
引边OA的垂线
垂足为
又由
引边AB的垂线
垂足为
设
.
(1)求
;
(2)证明:
;
(3)当
重合时,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24870ee25b63669f686cc8aa53374f4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e794fd36d9b28de03908f0c21b30414a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d64801a9845ef812c2001ee00bd7f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d9e1d5167f89a42b8d8f06e034ed87b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86380a6d6501f6504dcb4aa5e3099f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d22e066387d960d55471c865a854283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71349512a51160b7df3e932ac590a69b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc18a5bb2e53586331b2a58538a48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe2fe003698220fbd2c7634feebf202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2309b06a96dca127dbf7abfeb380c11f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc098701157926c849e7d01393d8392.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea35838975a3f7db1f3b82241ff87dc.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0701a68e7c61bf39f526433258ae151b.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594fa9a4bce1ed5fd27e4cb55d63cf0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bb0b8a5eef291796c89c1cae6e2a1e.png)
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2020-12-01更新
|
1056次组卷
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6卷引用:上海市南洋中学2020-2021学年高二上学期期中数学试题
上海市南洋中学2020-2021学年高二上学期期中数学试题(已下线)第8章 平面向量(章节压轴题解题思路分析)-2020-2021学年高一数学下册期中期末考试高分直通车(沪教版2020必修第二册)(已下线)第9章 平面向量(能力提升)-2020-2021学年高一数学单元测试定心卷(苏教版2019必修第二册)(已下线)第19讲压轴综合题(讲义)-【教育机构专用】2021年春季高一数学辅导讲义(沪教版2020必修第二册)重庆市长寿中学校2021-2022学年高一下学期阶段性考试(一)数学试题湖北省十堰市丹江口市第一中学2021-2022学年高一下学期期中数学试题(一)
名校
7 . 平面直角坐标系
中,
,该平面上的动线段
的端点
和
,满足
,则动线段
所形成图形的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae5a64bcb77f5f64e4af6930c249a270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8fae24d652401deb3037154b5d2cab0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-04-01更新
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4卷引用:上海市复旦大学附属中学2019-2020学年高二上学期期中数学试题
8 . 在直角坐标系中,已知三点
,
,
,若向量
、
在向量
方向上的投影相同,则
的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3160fc73f2a90ae4a1a97351ab2673b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002f66f22c25da388793748a8106dc31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d7d75a66dd9e14c866e39e82074d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68628a408537b1cf3bf1ca2a69731b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20ec3efaa6b6ff5769e8999df5714a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c82e121d1b4cc70aaeadb44e4fff210.png)
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9 . 已知向量
,
,且
与
平行,向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a990fff176ad776384e5c73687bf22e6.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788fa471d53a8be8dd55f561aecbf99d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4611f7a99ee986b51adecf1aeae7de8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697e82d288df5ac7656340301e636646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e07c25df57a36d4f1b11d7d9fe16b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a990fff176ad776384e5c73687bf22e6.png)
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名校
解题方法
10 . 向量
均为非零向量,
,则
的夹角为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ccba3b87a8a48ac3dd5f72d00bdb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4f2e741ba687377ca4c0b08c3421e44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ccba3b87a8a48ac3dd5f72d00bdb1a.png)
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2022-04-17更新
|
829次组卷
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9卷引用:上海市新川中学2019-2020学年高二上学期第一次月考数学试题
上海市新川中学2019-2020学年高二上学期第一次月考数学试题2016届黑龙江省牡丹江市一中高三上学期期末文科数学试卷内蒙古集宁一中2018-2019学年高一6月月考数学试题(已下线)考点57 平面向量数量积(练习)-2021年高考数学复习一轮复习笔记(已下线)6.2.4 向量的数量积(分层练习)-2020-2021学年高一数学新教材配套练习(人教A版2019必修第二册)(已下线)专题2 平面向量的数量积及其应用-学会解题之高三数学321训练体系【2022版】北京市北大附中2021-2022数学高一下学期期中数学试题广东省惠州一中、珠海一中、中山纪念中学2021-2022学年高一下学期第二次段考数学试题广东省深圳实验学校2021-2022学年高一下学期期中数学试题