解题方法
1 . 已知
,
是两个非零向量,当
(
)的模取最小值时.
(1)求
的值;
(2)求证:
.
![](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/edc20644e220b5abd6ca29a666760dfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92864b1adfe473942d40eb958d35a20d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afc8202c666090383cab0711b616aed1.png)
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2 . 设平面内两向量满足:
,
,
,点
的坐标满足:
与
互相垂直.求证:平面内存在两个定点A、B,使对满足条件的任意一点M,均有
等于定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12976a4d92584494d1c2c714684d45b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9722f8a42160ce6b768c05e2e1aaeaab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfcf5ebc3fc098ba0d5204dbb9f7aecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ff7e0ef1f622120cc1b18e9d3e80ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455d3d3c588c737fafb03437e0432258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9710af251aaf32edb1ba5fa7fbc90d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fa24910f955c519b547d7a2a39dee2a.png)
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12-13高二上·辽宁盘锦·开学考试
解题方法
3 . 已知非零向量
、
,且
与
垂直,
与
垂直,求
和
的夹角.
![](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/1f04039292017b48bb2232442e4511c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a79c80837cd64a5e469c4fb8c10a3135.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1509732626b1f58f2e56792b3311b5b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f358d54b3755b6dd1712094bf005092e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
您最近一年使用:0次
2021-04-24更新
|
490次组卷
|
8卷引用:沪教版 高二年级第一学期 领航者 第八章 每周一练(2)
沪教版 高二年级第一学期 领航者 第八章 每周一练(2)人教A版(2019) 必修第二册 逆袭之路 第六章 6.2.4 向量的数量积人教B版(2019) 必修第三册 逆袭之路 第八章 8.1 向量的数量积 8.1.2 向量数量积的运算律(已下线)第11讲向量的数量积(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)沪教版(2020) 必修第二册 领航者 第8章 平面向量 每周一练(2)沪教版(2020) 必修第二册 领航者 一课一练 第8章 每周一练(2)(已下线)2012-2013学年辽宁省盘锦市第二高级中学高二9月期初考试数学试卷2014-2015学年山东省威海一中高一下学期期末数学试卷
4 . 已知直线
的方程为
.求证:
(1)无论
取何值时,
都经过一个确定的点
;
(2)无论
取何值时,对于
上任意一点
,向量
均与向量
垂直.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e909a7bc31ef2f35e4be4d80d28698.png)
(1)无论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)无论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3722488cf68b05c22d3e6c0b4de6991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bbac9b04118d36bbffab6ded0c964fb.png)
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5 . 如图,设
是平面内相交成
角的两条数轴 ,
分别是
轴,
轴正方向同向的单位向量,若向量
,则把有序数对
叫做向量
在坐标系
中的坐标,假设
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/e486048b-4937-4db6-97fb-2dfc4f618526.png?resizew=144)
(1)计算
的大小;
(2)设向量
,若
与
共线,求实数
的值;
(3)是否存在实数
,使得
与向量
垂直,若存在求出
的值,若不存在请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c092d69df76faf1e2133dc96b466ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42503437fb44722722cd20835f11d233.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/0725eb3ba34ec2631d77a36385628059.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82973c2b6d1c407318545f1c0f32ec2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e36a989cef1bbeb220bcdbfbcc2dda9e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/e486048b-4937-4db6-97fb-2dfc4f618526.png?resizew=144)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e87b143b8e89334dda69da4671fbf8e.png)
(2)设向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d997e91116ae364ae9974b8e7b82e6ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82973c2b6d1c407318545f1c0f32ec2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82973c2b6d1c407318545f1c0f32ec2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b41e851f57a03deac4f7093165ef8e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2019-05-30更新
|
875次组卷
|
6卷引用:人教A版(2019) 必修第二册 突围者 第六章 综合拓展提升
名校
6 . 已知平面向量
,
.
(1)若
与
垂直.求
;
(2)若向量
,若
与
共线,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f29ea1d6fd62eef9100aec3b839beea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b707f294dda400613f1ac970b782ca1c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c991c47d835be329cbd756c5a86c70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4827e770d5e88b92db7ebbc09a46f4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b50cb87105d912ed1f80ac15175ce95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/287ad9609eeb0843d9dbc413138f9c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1269c6ad68288bd4ebb1e563800cbb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59a967690ea293d7e1b3c5b730cb3379.png)
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2020-11-09更新
|
678次组卷
|
6卷引用:沪教版(2020) 必修第二册 同步跟踪练习 第8章 平面向量 8.3~8.4 阶段综合训练
21-22高一·江苏·课后作业
7 . 如图,在▱ABCD中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6aba8184d8037611c64108c7b44aa8b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/e1ba195c-a991-46c5-8a81-0d4fafeef3c1.png?resizew=166)
(1)当
,
满足什么条件时,
与
所在的直线互相垂直?
(2)
与
有可能为相等向量吗?为什么?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6aba8184d8037611c64108c7b44aa8b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/e1ba195c-a991-46c5-8a81-0d4fafeef3c1.png?resizew=166)
(1)当
![](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/73b91254db5ff748150f449c5cdd256c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1c1dd6b13d92f2cc2eef097e14c07c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b91254db5ff748150f449c5cdd256c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1c1dd6b13d92f2cc2eef097e14c07c.png)
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12-13高一上·黑龙江牡丹江·期末
名校
解题方法
8 . 已知
,
与
的夹角为
.
(1)若
,求
;
(2)若
与
垂直,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26a45a93b14d9c1d6ec9d7b4e50ef115.png)
![](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/c24095e409b025db711f14be783a406c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70facc9bc02af0867d248407bd317c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0fe4d834e8eaca89ceaf9c64cdabd9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1c1dd6b13d92f2cc2eef097e14c07c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次
2020-03-03更新
|
666次组卷
|
12卷引用:1.5向量的数量积 综合训练
1.5向量的数量积 综合训练(已下线)2011-2012学年黑龙江省牡丹江一中高一上学期期末考试数学广西百色市普通高中2019-2020学年高一上学期期末数学试题安徽省马鞍山市2019-2020学年高一上学期期末数学试题湖南省湘西州2017-2018学年高一下学期期末数学试题广西河池市高级中学2018-2019学年高二上学期第一次月考(开学考试)数学试题黑龙江省牡丹江市穆棱一中2019-2020学年高一上学期期末考试数学试题内蒙古集宁一中2019-2020学年高一下学期第三次月考数学(文)试题湖南省娄底市2019-2020学年高一下学期期末数学试题甘肃省天水市第一中学(兰天班)2020-2021学年高一下学期期末数学试题甘肃省天水市第一中学2020-2021学年高一下学期期末数学试题天津市南开区南大奥宇培训学校2020-2021学年高二上学期开学摸底考试数学试题
名校
解题方法
9 . 如图,在
中,点
为直线
上的一个动点,且满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392e7a97bd1afd55bb421fc50d37aeb9.png)
(1)若
,用向量
表示
;
(2)若
,且
,请问
取何值时使得
?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8189f7b0ffe4d20bf0fad43b4ed589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392e7a97bd1afd55bb421fc50d37aeb9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1c3ea872a20fdc1843cb5ffce8a554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870621330877caa08df79df91fc4ff4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82973c2b6d1c407318545f1c0f32ec2e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02c566dcec142e6b988f69a6ee25133a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcbe025d58809cacf971c8b9462ed7da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e288b80b52681ce7f4c823e4b72ae70.png)
![](https://img.xkw.com/dksih/QBM/2018/5/25/1953093040496640/1957942657212416/STEM/5e6c4fcbfa1648bcad152553563ac72d.png?resizew=192)
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2018-06-01更新
|
1045次组卷
|
5卷引用:人教B版(2019) 必修第三册 过关斩将 第八章 向量的数量积与三角恒等变换 8.1.1 向量数量积的概念+ 8.1.2 向量数量积的运算律
解题方法
10 . 已知
,
,
.
(1)若
,求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d138c9fae3e5f1a6b43c242c20d460e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9330c5119e332fe8decb48df4490abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a90f71a22daa4df7bd75c1e3e66fcb4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069da5c624837df29947b7b8bf722097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260a8768bbb028ea7a5af151c7a553bd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5aa846a5b7c96fe2ce665eb1ea5f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ad735f28d4a7b9a5e5f9271c895bf20.png)
您最近一年使用:0次