名校
1 . 如果平面向量
,
,那么下列结论中正确的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef45ab6570da5b8e53fc5b0e004b738f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b96e01cb3d858af314183de347c56ff.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2018-03-30更新
|
1115次组卷
|
9卷引用:广东省珠海市第二中学2023-2024学年高一下学期第一阶段考试数学试题
解题方法
2 . 已知向量
.
(1)求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10eaf711cee37c1d07b3211a41b7713e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d521f8d021b20757d7a68107fcef1d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ff472ee70ef2c8d22129285567deac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
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3 . 向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8538e696c1162073b3506eaa60037489.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8538e696c1162073b3506eaa60037489.png)
您最近一年使用:0次
2017-12-08更新
|
329次组卷
|
3卷引用:四川省泸州市泸县第一中学2019-2020学年高一下学期第二次月考数学试题
4 . 已知向量
,
,且
,则
=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efbd57c6e24b37ff778bba9514b240f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac887fffe7f5032fa321128770a6b474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb58883caf5c8ca1e94389839d294b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6033eb87c37688d518bcf1184e48d81a.png)
A.5 | B.![]() | C.![]() | D.10 |
您最近一年使用:0次
2017-10-06更新
|
754次组卷
|
7卷引用:内蒙古乌兰察布市北京八中乌兰察布分校2018-2019学年高一下学期四调数学试题
内蒙古乌兰察布市北京八中乌兰察布分校2018-2019学年高一下学期四调数学试题2016-2017学年湖北省孝感市七校教学联盟高一下学期期中考试数学(文)试卷黑龙江哈尔滨市第十九中学2016-2017学年高一下学期期中考试数学试卷2020届宁夏石嘴山市平罗中学高三上学期期中考试数学(理)试题西藏日喀则市2020届高三上学期学业水评测试(模拟)数学(理)试题(已下线)专题14 平面向量-2020年高考数学(理)母题题源解密(全国Ⅰ专版)(已下线)专题14 平面向量-2020年高考数学(文)母题题源解密(全国Ⅰ专版)
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5 . 在等腰梯形
中,已知
,
,
,
,动点
和
分别在线段
和
上,且
,
,则
的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d31600cba2d5256c7e78b6122d6755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05740f0c6071846227dc0ec177ad15e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d276c39029bfe05a2bae80adcfc2a95a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143debe3425fd1f543b2099a02190553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d044ead67add5a5f27507954fb50533b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-09-02更新
|
611次组卷
|
2卷引用:云南省昆明市第八中学2020-2021学年高一特色班下学期第二次月考数学试题
12-13高一下·浙江台州·阶段练习
6 . 已知向量
,
,
.
(Ⅰ)求
的值;
(Ⅱ)若
,
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9da4e63d1f179abe3df4b15770eff2f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aae4f4bcad92109e6200e7c2160cc34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/276a0e6e324320aa4d38efa90ad95770.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d521f8d021b20757d7a68107fcef1d.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65b6c42393fae47c51101713167ff71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8d88054c08b24133a1bb1c86f1ceab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9674d79ac22f09fd441d04f75fbfcf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
您最近一年使用:0次
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7 . 已知点
,
为坐标原点.
(1)若
,求
的值;
(2)若实数
满足
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b0b48f87b1cf5d25b590c60fa3dfb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12119a418505ce8c190c575a6de38bff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a080cab44a7d3605430d67b207f9be.png)
(2)若实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ab8d9ec70b87c38a978f43d012eff0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ccb9e2ad02134176b62c4b4b9b6cd92.png)
您最近一年使用:0次
2017-07-25更新
|
512次组卷
|
3卷引用:湖南省长沙市明德中学2015-2016学年高一5月月考数学试题
8 . 已知平面向量
和
的夹角为60°,
,
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f17231958aa1b72a3d44f472d46aa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcbcc85521ef83792fe4d15b99f9f846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eca8fb20438505791369da9abe4a804.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f17231958aa1b72a3d44f472d46aa8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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解题方法
9 . 已知向量
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6d343208f0f5e3aab71004c245dabe.png)
________________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788fa471d53a8be8dd55f561aecbf99d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ea73a7508e8762797367a7997c4e8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6d343208f0f5e3aab71004c245dabe.png)
您最近一年使用:0次
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解题方法
10 . 已知
,
.
(1)若
,求
的值;
(2)求
与
的夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e705609358b31101cb6548e7effce65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cdb27b8d170a24bf2352506675a7a6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eafbd4737f9b87826e9354e2f7ccef3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b98386771bbcbdb72732c37633dff29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713eb2a72f8f690b71f27ec93ff40a34.png)
您最近一年使用:0次
2017-06-05更新
|
1421次组卷
|
2卷引用:山东省枣庄市第三中学2018-2019学年高一下学期6月月考数学试题