名校
1 . 如图,在四边形ABCD中,
,
,
,且
,
则实数
的值为__________ ,若M,N是线段BC上的动点,且
,则
的最小值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32436704a722d5e568ff5c175bf3c662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15334a2cf8cc0f7432b3ba64850921ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2dc819fe1cc5a7f843926bdd19a5484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbe31c30482f79407b877d5039a9412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc289ac171c5a2df841fbb7d15fd89d1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/17/4cf4c3b6-5f36-40a9-aa69-5bb1f2f741df.png?resizew=178)
您最近一年使用:0次
2020-11-27更新
|
2494次组卷
|
9卷引用:山东师范大学附属中学2020-2021学年高三11月学业水平测试数学试题
名校
2 . 已知矩形
,
,
,点P满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5649d3e226a8d6a01e503d0f96e17b78.png)
_________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715cfb50fd12fb0768aba62d01ec5288.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b6b858df72b4c141bf38c143567236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5649d3e226a8d6a01e503d0f96e17b78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715cfb50fd12fb0768aba62d01ec5288.png)
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2020-11-21更新
|
441次组卷
|
3卷引用:北京市铁路第二中学2021届高三上学期期中考试数学试题
北京市铁路第二中学2021届高三上学期期中考试数学试题北京市第四十三中学2021届高三12月月考数学试题(已下线)专题6.3 平面向量的基本定理及坐标表示(B卷提升篇)-2020-2021学年高一数学必修第二册同步单元AB卷(新教材人教A版,浙江专用)
3 . 已知
,
,若
,则x=______ ;若
,则x=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d059f3c141a64eaee06366c1c19d7bc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b85761311f7a5d08fbb2275310f7f240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09de4235abf237748dd695162dac7160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afaa85aa8e9061665fab622caff10ca3.png)
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4 . 设向量
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9afc7bfbc67ff08ae5380508d9ca746.png)
______ ;向量
,
的夹角等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1187fae85a036048e82fe00494754405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e587626640f5dc20f7b7e20e30a10d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9afc7bfbc67ff08ae5380508d9ca746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
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5 . 已知点
,
为坐标原点,点
,
分别在
轴和
轴,且满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a9cb62d137b868638b88e5a1282521.png)
______ ,
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c9708ef0dc6d6f5dcf6596d3e4f6e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/83640592853a53872d7af69c0cffc1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a9cb62d137b868638b88e5a1282521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a56518c40c4e7c0627f56b145795161b.png)
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解题方法
6 . 已知△ABC是边长为2的正三角形,O,D分别为边AB,BC的中点,则①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0841d78424ae045c14154bc342629cc0.png)
_____ ;②若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0841d78424ae045c14154bc342629cc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbf34c24c29dbde5883244c76dcf8c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
您最近一年使用:0次
2020-10-24更新
|
249次组卷
|
3卷引用:北京市海淀区2018届高三上学期期中考试数学(理)试题
7 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9afc7bfbc67ff08ae5380508d9ca746.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fece1a97b31498ee460acaa8bd098fe7.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016e4d15ab8f5359f6aa3b42674b0c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9a6da01982ddfed3a02004c5deff39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9afc7bfbc67ff08ae5380508d9ca746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fece1a97b31498ee460acaa8bd098fe7.png)
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8 . 向量
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
____________ ,
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c152351d8712a136cd21ef62dcc61ac2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a466cc48a860a05d005cc5520a6abf19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069da5c624837df29947b7b8bf722097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9afc7bfbc67ff08ae5380508d9ca746.png)
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9 . 已知向量
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9afc7bfbc67ff08ae5380508d9ca746.png)
__________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feec2248da0d480631f8d5678b9b9add.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2af7a3f6b838b0c56d410c0628fdc907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/564b5ce0cf96840f59d8bb9af2af96e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069da5c624837df29947b7b8bf722097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9afc7bfbc67ff08ae5380508d9ca746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feec2248da0d480631f8d5678b9b9add.png)
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2020-09-06更新
|
2280次组卷
|
2卷引用:人教A版(2019) 必修第二册 第六章 平面向量 单元测试
20-21高三上·浙江·阶段练习
解题方法
10 . 已知向量
,
,
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21e2f1ab7c983cd9328fdc6e281949f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4999d33d8b0c0ecac46d82dfccf4e982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a8e59d45f8d933b396c8143cda59cf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d76ee2e81f447f84a3e0b39c0388ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a36228810d0c2f6c6e53584c1ac176b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
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