解题方法
1 . 在矩形
中,
,
,
,
,过M点作
交
于N点,若E,F分别是
和
上动点,且
,则
的最小值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/896c8d8287880eaa8f3aff23329162c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e611215ac6eddeddc9d2f5b4fc159b88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31307b00524e461b0ad8dfbcdf24bacf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8bab3b240ee19b51ad31f86d55dbe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231c8b6343f4fdd9605e5c4f891528db.png)
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2 . 如图,已知在边长为2的正三角形
中,点P,Q,R分别在边
,
,
上,且
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207e5e7d8deb755608c75f88a865f4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/415066228886468ab3342063503b7637.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/9298e0ce-f4d6-45f0-9815-db51e99427f9.png?resizew=176)
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3 . 已知在
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17b397bc5fc25818fcbdd57da0dcb07.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bfa54b6a51432418184d65ca4de68a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17b397bc5fc25818fcbdd57da0dcb07.png)
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2023-08-06更新
|
364次组卷
|
2卷引用:天津市实验中学滨海学校2022-2023学年高一下学期期中数学试题
名校
解题方法
4 . 如图,在平面四边形
中,
,
,
,
.若
为线段
中点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9bd73598daef2a18cd449eb0e214f8.png)
______ ;若
为线段
(含端点)上的动点,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ec435aa1401dbce7863b531bf2f3e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1b79e9ebac09fb79679af525597b52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9bd73598daef2a18cd449eb0e214f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d67e3a831657984ca46c31a3889d6fd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/26/a73bdea4-cd49-4469-b8da-19693241ca20.png?resizew=116)
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解题方法
5 . 在四边形ABCD中,
,
,
,
,点E在线段CB的延长线上,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db1a475eeeb3b3ce5ecf8796b0a1bb.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf7679c8b4b1e442ce4286d4b0e9c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1caf493da340bf364c56d37cab3ef30b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45087cde2d66377517a3fce5553b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db1a475eeeb3b3ce5ecf8796b0a1bb.png)
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2023-01-06更新
|
621次组卷
|
4卷引用:天津市第二十五中学2022-2023学年高三上学期期末数学试题
天津市第二十五中学2022-2023学年高三上学期期末数学试题天津市咸水沽第一中学2021届高三下学期模拟检测(二)数学试题(已下线)2.5.2向量数量积的坐标表示(已下线)第六章平面向量及其应用(知识通关)(2)
名校
解题方法
6 . 已知O为矩形ABCD内一点,满足
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ccd4d84f2084b587aa0de6fadb70fe.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd65057c9a2326925fff9648bf971f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75758edd64e16ee17466aaae161b8893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7be183559eb0e0b7e440de20115f5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ccd4d84f2084b587aa0de6fadb70fe.png)
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2022-12-29更新
|
678次组卷
|
3卷引用:天津市耀华中学2022-2023学年高三上学期第三次月考数学试题
名校
7 . 已知向量
,
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
________ ;若
与
的夹角为钝角,则
的取值范围为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a08ed47d6563ffa369eec7374cccffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165f910a08822b71a4c73e8f4a159e3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/571bbe3e4cd85e64fa8ef0baae39fe6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54c619311cad1b26c913cabde234cf2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
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2022-10-11更新
|
618次组卷
|
4卷引用:天津市滨海新区塘沽第一中学2023-2024学年高三上学期第一次月考数学试题
名校
解题方法
8 . 如图,在矩形ABCD中,
,点E为BC的中点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b08895d449fc3930fb50c0fa5c2f072.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73ba94cec6c03980be9ca03774379fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba4d5e49091e85af01a675bd31ea81a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b08895d449fc3930fb50c0fa5c2f072.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/6af62f62-970c-409c-b901-87ab37df0012.png?resizew=108)
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2022-05-04更新
|
896次组卷
|
3卷引用:天津市第九十五中学益中学校2021-2022学年高一下学期阶段性检测数学试题
天津市第九十五中学益中学校2021-2022学年高一下学期阶段性检测数学试题河北省邢台市卓越联盟2021-2022学年高一下学期第二次月考数学试题(已下线)6.4.1-6.4.2 平面几何中的向量方法和向量在物理中的应用举例(分层练习)-同步精品课堂
解题方法
9 . 如图,在
中,
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3186fa91234bddb1109b92c7708fc175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc603ed06b61fa3bca49e878600d91b6.png)
![](https://img.xkw.com/dksih/QBM/2020/3/10/2416414634360832/2416491476549632/STEM/e0d760365eae4c39b1aa96d1b2b8897d.png?resizew=126)
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10 . 已知
是
内一点,且满足
,记
、
、
的面积依次为
,则
等于________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf963beea63513855e70359c6bf077e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2694c32ca1e120e988012b7ecd74f625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5dbede0ae298e66ca5af37df8754aac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b280088a8f97b52c2145bc709434e7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf4e20ea341827ce5f9552daee39462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1627178de6edc574614a630f65775709.png)
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