名校
1 . 如图所示,已知在正方形
中,E,F分别是边
,
的中点,
与
交于点M.
(1)设
,
,用
,
表示
,
;
(2)猜想
与
的位置关系,写出你的猜想并用向量法证明你的猜想.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/8/8647b5f7-c32f-4bbb-b296-6b824dbcd331.png?resizew=136)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7b9d8a08fc52c31cc1a7f527d18b55c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184359fe3cadc363cf4ebe586c2b3db4.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/d5c3accb1b8a5479439beff4259660e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa8c53645db602c72b00b599c2c0ff97.png)
(2)猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
2023-08-06更新
|
562次组卷
|
9卷引用:海南省屯昌中学2022-2023学年高一下学期期中考试数学试题
海南省屯昌中学2022-2023学年高一下学期期中考试数学试题 (已下线)专题07 向量的应用-【寒假自学课】(苏教版2019)(已下线)专题05 平面向量的应用(题型专练)-《知识解读·题型专练》(人教A版2019必修第二册)(已下线)专题9.6 向量的应用-重难点突破及混淆易错规避(苏教版2019必修第二册)(已下线)9.4 向量应用-【帮课堂】(苏教版2019必修第二册)(已下线)模块一 专题3 平面向量的应用(讲)(已下线)6.4.1 平面几何中的向量方法-同步题型分类归纳讲与练(人教A版2019必修第二册)广东省湛江市第二十一中学2023-2024学年高一下学期第一次月考数学试题(已下线)模块一专题3 《平面向量的应用》 【讲】(苏教版)
2 . 在
中,
分别为边
上的点,且
.设
.
表示
;
(2)用向量的方法证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db3c8e1845ccbd884f90647aee62be0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc3fb13310a69c3aeba7d3e70228ff73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ba495e8f9fe02229a4248fdbfb4710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a2e6fd773e4d3af0a3c8ae37061256.png)
(2)用向量的方法证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c072ab704dd61e1690f3cdb1c8877611.png)
您最近一年使用:0次
名校
3 . 如图所示,在
中,
,
,
,
.
(1)试用向量
,
来表示
,
;
(2)若
,求证:D,O,N三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e984585ddf28c039219afcebf229de7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6526c7fe1904af8366a2845ad441540c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a814303dd703d9068b364f317c14d96e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/10/55136a45-6e5e-48fd-9183-2ac86bfb3739.png?resizew=154)
(1)试用向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9465e4f69188514f560f27449bddfe6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe6d728b430549f00bb9c0a7bf8bf7d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f326c6db10529253acdf12b691d19ba.png)
您最近一年使用:0次
2023-05-21更新
|
451次组卷
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3卷引用:安徽省皖北县中联盟2022-2023学年高一下学期5月联考数学试题
名校
4 . (1)已知点
,求证:
;
(2)已知向量
不共线,且
,求证:
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff2e8f9baf9d42187894cc588383ebc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
(2)已知向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10814bc3db929e79874befe96cf4e3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66168b44efda1a9e56be3847d2bc8cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eacedc00563807ce87bb481fdef8cbd.png)
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名校
解题方法
5 . 如图,在正
中,
,
分别是
,
上的一个三等分点,分别靠近点
,点
,且
,
交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/2/49320185-8072-4584-8f5a-a6db85ddf0fe.png?resizew=172)
(1)用
,
表示
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.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/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/2/49320185-8072-4584-8f5a-a6db85ddf0fe.png?resizew=172)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083a20abb668d4c26fe5039bd108b40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/471ac0f42d01c6d6e094b63628586e4d.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a5ca043c87e3de20d74206cabed8fe.png)
您最近一年使用:0次
2023-04-01更新
|
879次组卷
|
2卷引用:四川省雅安中学2022-2023学年高一下学期3月月考数学试题
解题方法
6 . 已知向量
.
(1)求证
;
(2)如果对任意的
,使
与
垂直,求实数k的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239cf5308b3632f07fa2268d00a49979.png)
(1)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
(2)如果对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b753f5c98e9fd0c60bcd49b5ab4ca82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10251c754376c4a0b9ba8fbe8bd9139a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fc1cf8e8363a1f531babfd5e92bfe8.png)
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解题方法
7 . 在
中,角
所对的边分别为
,其面积为
为边
上的中线.
(1)证明:
;
(2)当
时,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e30c0a5c92f50dce1f7624709950ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ec18aa8ab6f4a4e70722e4df77c9c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1674958a42b2e490fd1b43d31ab2e9ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e47edc1890691d332d542d64d749ffa6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/509f4f1585a01315f2f4e5dbbcefb419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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名校
解题方法
8 . 已知梯形
中,
,
,
,E为
的中点,连接AE.
(1)若
,求证:B,F,D三点共线;
(2)求
与
所成角的余弦值;
(3)若P为以B为圆心、BA为半径的圆弧
(包含A,C)上的任意一点,当点
在圆弧
(包含A,C)上运动时,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f864244952b60f3648f08a19268efae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9575824984c3e936744641879dc3edd4.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d021a5c98388463d577675e58068aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4781e3daa2c4e018ca0ae09bb56abc0f.png)
(3)若P为以B为圆心、BA为半径的圆弧
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab7aaa871ceb78e5b80b531a7cf4f1c9.png)
您最近一年使用:0次
2023-03-26更新
|
991次组卷
|
4卷引用:江苏省常州市联盟学校2022-2023学年高一下学期3月学情调研数学试题
名校
9 . 如图,在
中,
,
,
与
的交点为M,过M作动直线l分别交线段
、
于E、F两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/10/f8e73526-0092-4bcd-84d8-4e54327e061e.png?resizew=174)
(1)用
,
表示
;
(2)设
,
.①求证:
;②求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/314950b73356382273fe3186ca72c14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f93159717a900fb028a13b1ed763a12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/10/f8e73526-0092-4bcd-84d8-4e54327e061e.png?resizew=174)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c70d3674afde7efd0bbafc68e50b828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3bfb6d4191082a234e18ba331fe1ec7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4989ac1657338153cb81915fe6090bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
您最近一年使用:0次
2023-03-26更新
|
1040次组卷
|
4卷引用:北京市首都师范大学附属中学2022-2023学年高一下学期3月月考数学试题
10 . 如图,AB为半圆O的直径,
,C,D为
(不含端点)上两个不同的动点.
(1)若C是
上更靠近点B的三等分点,D是
上更靠近点A的三等分点,用向量方法证明:
且
.
(2)若
与
共线,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae5a64bcb77f5f64e4af6930c249a270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/4c6c359a-3702-4efd-8ec6-4d9401c2745d.png?resizew=160)
(1)若C是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9204fa555e4c2945323c6c49116ccfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5e869edfbae384c11836b90cceb2773.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1070a28cb9cb8553c29747d1993b16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a783e5ffcf7a4ea9e531ea76199487.png)
您最近一年使用:0次
2023-06-20更新
|
395次组卷
|
5卷引用:辽宁省抚顺市重点高中六校协作体2022-2023学年高一下学期期中考试数学试题
辽宁省抚顺市重点高中六校协作体2022-2023学年高一下学期期中考试数学试题(已下线)第05讲 平面向量的应用-《知识解读·题型专练》(人教A版2019必修第二册)(已下线)6.4.1平面几何中的向量方法+6.4.2向量在物理中的应用举例【第三课】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)第6.4.1讲 平面几何中的向量方法-2023-2024学年新高一数学同步精讲精练宝典(人教A版2019必修第二册)(已下线)高一下学期期中复习解答题压轴题十八大题型专练(1)-举一反三系列(人教A版2019必修第二册)