1 . 已知正方形
边长为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932367ab19dd447389bb767e7d4ed4b1.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932367ab19dd447389bb767e7d4ed4b1.png)
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2020-02-13更新
|
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3卷引用:福建省厦门市第一中学2019-2020学年高一上学期12月月考数学试题
福建省厦门市第一中学2019-2020学年高一上学期12月月考数学试题沪教版(2020) 必修第二册 同步跟踪练习 第8章 8.1.2 向量的加法和减法(已下线)6.2.2 向量的减法运算【第一练】“上好三节课,做好三套题“高中数学素养晋级之路
名校
2 . 如图,在等腰三角形
中,已知
,
,
分别是边
上的点,且
,其中
且
,若线段
的中点分别为
,则
的最小值是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe07603e5ec70c15bdccd29ccaae7fe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/284a563413dc0532138fb2a64db8cc2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d54431bbb28ebd98db5c1dc6083a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ced561a3fffe222ab42bc4a015385dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf89344ded4d4ebb94edf2b8d42ed8dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74d6ff84712e33efb6140658e816e548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a1a9e8acb9e2dffeaf5ee062d0fa9c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b405c36bca1dca1aa0483386c8fc62b3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/1af5bc7d-547f-46cb-ad9a-7097611d5b1d.png?resizew=174)
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6卷引用:福建省漳平市第一中学2019-2020学年高三上学期第二次月考试题 数学(理) 试题
福建省漳平市第一中学2019-2020学年高三上学期第二次月考试题 数学(理) 试题2019年河南省郑州市高一下学期期末考试数学试题(已下线)2020届高三12月第03期(考点05)(理科)-《新题速递·数学》人教A版(2019) 必修第二册 过关斩将 第六章 6.1~6.2 综合拔高练2020届浙江省温州中学高三下学期3月高考模拟测试数学试题(已下线)考点15 平面向量的线性运算-2021年高考数学三年真题与两年模拟考点分类解读(新高考地区专用)
3 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581cd277ebed8396bd82778f84d83c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581cd277ebed8396bd82778f84d83c53.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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12卷引用:福建省建瓯市芝华中学2022-2023学年高二下学期春招班第一次月考数学试题
福建省建瓯市芝华中学2022-2023学年高二下学期春招班第一次月考数学试题山西省晋城市陵川县高级实验中学2020-2021学年高一下学期3月月考数学试题浙江省嘉兴市第五高级中学2020-2021学年高一下学期3月月考数学试题山西省大同市灵丘县第四中学2020-2021学年高一下学期3月月考数学试题福建省普通高中2021-2022学年高二学业水平合格性考试数学模拟试题2019年河南省郑州市高一下学期期末考试数学试题(已下线)专题5.1 平面向量的概念及线性运算(练)【文】-《2020年高考一轮复习讲练测》(已下线)专题5.1 平面向量的概念及线性运算(练)-江苏版《2020年高考一轮复习讲练测》人教A版(2019) 必修第二册 过关斩将 第六章 6.1~6.2 综合拔高练(已下线)狂刷18 平面向量的概念及线性运算-学易试题君之小题狂刷2020年高考数学(理)甘肃省金昌市第一中学2020-2021学年高一下学期期中考试数学(理)试题新疆维吾尔自治区乌鲁木齐市第101中学第2021-2022 学年高一下学期期中考试数学试题(问卷)
名校
4 . 在
中,
是
的中点,
是
的中点,过点
作一直线
分别与边
,
交于
(不与点 A重合),若
,其中
,则
的最小值是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc98e93471411bbeefd4e45a4087c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407e4330cfdd5cd0bcfd4f3bd1a898e6.png)
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6卷引用:福建省龙岩市上杭县第一中学2019-2020学年高三12月月考数学(文)试题
福建省龙岩市上杭县第一中学2019-2020学年高三12月月考数学(文)试题福建省泰宁第一中学2019届高三上学期第三阶段考试数学(理)试题四川省威远中学2019-2020学年高一下学期第二次月考数学(理)试题【市级联考】安徽省黄山市普通高中2019届高三11月“八校联考”数学(理)试题【市级联考】山东省泰安市2019届高三上学期期末考试数学(文)试题(已下线)考点56 平面向量的线性运算及基本定理(讲解)-2021年高考数学复习一轮复习笔记
名校
解题方法
5 . 如图,已知正三角形
的边长为1,设
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/4a65fceb-8961-475b-a758-c1428000d629.png?resizew=152)
(1)若
是
的中点,用
,
表示向量
;
(2)求
与
的夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f968d4bca2443672e4f7295a6360e316.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/4a65fceb-8961-475b-a758-c1428000d629.png?resizew=152)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbba7bff7720b3aa33f29936ede7819e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/644f8f9cc6000b283ee7414580801864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c57559180de4a0203bc2497bcaa3eb.png)
您最近一年使用:0次
名校
6 . 已知四边形
,
是
的垂直平分线,垂足为
,
为直线
外一点.设向量
,
,则
的值是( )
![](https://img.xkw.com/dksih/QBM/2018/6/14/1966938850213888/1971212450922496/STEM/55d9a586cb2a4b06b7f4d3281d41baec.png?resizew=406)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61afb5608f7418cd2f74c9bca1af09f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7ad8e4822106a1f9b2fc7562cfafcdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ab3a98ed50ddf2d37d981e68aef9e00.png)
![](https://img.xkw.com/dksih/QBM/2018/6/14/1966938850213888/1971212450922496/STEM/55d9a586cb2a4b06b7f4d3281d41baec.png?resizew=406)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 四边形
中,
,且
,则四边形
是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da65df9df70430d0a095297a628f04c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e76d6f438896029901a5c9b6418fffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.平行四边形 | B.菱形 | C.矩形 | D.正方形 |
您最近一年使用:0次
2018-02-04更新
|
1907次组卷
|
5卷引用:2016届福建省三明一中高三第一次月考文科数学试卷
8 . 定义一种向量运算“
”:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
=
(
与
不共线),![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
=
(
与
共线) (
,
是任意的两个向量).对于同一平面内的向量
,
,
,
,给出下列结论:
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
=![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
;
②
(![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
)=(![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
;
③(
+
)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
=![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
+![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
;
④若
是单位向量,则|![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
|
|
|+1.
以上结论一定正确 的是________ .(填上所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a8f20036b1e7cfb0800f141d843718.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/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cf11da8b4e4e875f165db835d7d193a.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/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.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/94a87c03982d3af82c243fe0cca504f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99265b8b6459385e1eba69869b9d061.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f94d0b7c306de587f3a5f77c158c602.png)
③(
![](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/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a87c03982d3af82c243fe0cca504f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a87c03982d3af82c243fe0cca504f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a87c03982d3af82c243fe0cca504f1.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99265b8b6459385e1eba69869b9d061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99265b8b6459385e1eba69869b9d061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8536a5ebd76f494c03019086506d8e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
以上结论一定
您最近一年使用:0次
2017-10-21更新
|
962次组卷
|
2卷引用:福建省三明市第一中学2018届高三上学期第一次月考数学(文)试题
9 . 非零向量
使得
成立的一个充分非必要条件是
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572323586711552/1572323592413184/STEM/46542467bb13407a9498d2d4d6def36c.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572323586711552/1572323592413184/STEM/b7fbad9c266e4735a9daa24b2db6cb78.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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13-14高三·广东·阶段练习
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10 .
是△ABC所在平面内的一点,且满足
,则△ABC的形状一定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7168b2701f7f984d09101c82774e11a.png)
A.正三角形 | B.直角三角形 |
C.等腰三角形 | D.斜三角形 |
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2016-12-03更新
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7卷引用:福建省莆田擢英中学2023-2024学年高一下学期3月月考数学试卷
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