名校
1 . 在边长为2的等边△ABC中,D为BC边上一点,且
.
的取值范围;
(2)若AD上一点K满足
,过K作直线分别交AB,AC于M,N两点,设
,
,△AMN的面积为
,四边形BCNM的面积为
,且
,求实数k的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff400c098ae6bf6abd24651a5a21114e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bea2ee6084ccda017840830036dddc23.png)
(2)若AD上一点K满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edf44511eeab5e9a787677575306530f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9545f42dc3bb78dabdb73891f2e4a69c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/301af152850e2c795bd385d0d10836f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d835ac43e4e158d2cab981b23996a1.png)
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8卷引用: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(精练)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(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(精练)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)重难点:平面向量综合检测(培优卷)(已下线)专题6.7 平面向量的综合应用大题专项训练-举一反三系列(已下线)专题07 平面几何中的向量方法 向量在物理中的应用-《重难点题型·高分突破》(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)山西省运城市康杰中学2023-2024学年高一下学期第一次月考(4月)数学试题河南省普高联考2022-2023学年高三上学期考理科数学测评卷(二)河南省部分校联考2022-2023学年高三上学期第二次联考理科数学试题
2 . 在△
中,已知
,
,
,设点
为边
上一点,点
为线段
延长线上的一点,且
.
(1)当
且
是边
上的中点时,设
与
交于点
,求线段
的长;
(2)若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca036d049f5205cf04cb1b9c5cd03f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ffcd36ac5d27fe261b49b4ee86bfb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9baf120354c9bee071ecfa9b0b03567.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1d86b4ad722d7b720603eba9d330fd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e430f13f42cf2d44aa0f0e20b959684f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e883f81c66ceef54d2d0556a68ed585.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4acba0e35b5373d1d57e5302f60411a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf41cf43e6a1789f68049b51ecdecfb9.png)
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2022-11-02更新
|
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|
11卷引用:浙江省9+1高中联盟2021-2022学年高一下学期期中数学试题
浙江省9+1高中联盟2021-2022学年高一下学期期中数学试题(已下线)6.4.1-6.4.2 平面几何中的向量方法、向量在物理中的应用举例1-2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册) (已下线)第11讲 平面几何的向量方法(已下线)第六章《平面向量及其应用》同步单元必刷卷(培优卷)-2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(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(分层作业)-【上好课】2022-2023学年高一数学同步备课系列(人教A版2019必修第二册)(已下线)9.4 向量的应用1-2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(苏教版2019必修第二册) 重难点:平面向量综合检测(提高卷)江西省寻乌中学2022-2023学年高一下学期第二次阶段性测试(6月)数学试题(已下线)第6章 平面向量初步-【优化数学】单元测试能力卷(人教B版2019)(已下线)第一次月考解答题压轴题十六大题型专练(1)-举一反三系列(人教A版2019必修第二册)江西省南昌市第十九中学2022-2023学年高一下学期期中考试数学试卷
名校
解题方法
3 . 设正三角形
的边长为
.
为
的外心,
为
边上的
等分点,
为
边上的
等分点,
为
边上的
等分点.
![](https://img.xkw.com/dksih/QBM/2022/4/15/2958875502977024/2960395636252672/STEM/01a232cf-dcb5-4647-b0a2-c6e9c0dcc9d2.png?resizew=197)
(1)当
时,求
的值;
(2)当
时;
(ⅰ)求
,的值(用
表示);
(ⅱ)求
的最大值与最小值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdab6421fcc985bc894cdfeb8f23bb10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0876215b2fd463d151523cd3c6b447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b3b83052c84de13c5b6a8d45d737112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0876215b2fd463d151523cd3c6b447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c6deaaa02af8f5c1eb82a4ff4326a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0876215b2fd463d151523cd3c6b447.png)
![](https://img.xkw.com/dksih/QBM/2022/4/15/2958875502977024/2960395636252672/STEM/01a232cf-dcb5-4647-b0a2-c6e9c0dcc9d2.png?resizew=197)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c7867969b14fd642147188b6ebf29c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ab9df0a4585bb94b6ec578dc53fe23.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294250dbd576bff3da0a1456cb9a88a5.png)
(ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/750fc871d1b5737f171ffaf3c8f786a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c639c7e5f1e7e7ee5d5ee2f30b155bb0.png)
(ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d70bffc880575272edba9cc9098112f.png)
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2022-04-18更新
|
1309次组卷
|
3卷引用:重庆市第一中学校2021-2022学年高一下学期4月月考数学试题
4 . 如图,在梯形
中,
,
,
是
的两个三等分点,
,
是
的两个三等分点,线段
上一动点
满足
,
分别交
,
于
,
两点,记
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/cb636e8e-f9e0-4d40-a985-581c46d893d6.png?resizew=326)
(1)当
时,用
,
表示
:
(2)若
,试写出
和
的关系,并求出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ba2021caf4381dad4f73474912a8d9.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/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0010d180f5a6f298e7e866b368fe4f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83f1f880e5ffbff036953acaca90c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e7a93a1399ff7a2bde342652479241b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/775a45e4001e3063b5b70013f32d3a4b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/cb636e8e-f9e0-4d40-a985-581c46d893d6.png?resizew=326)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3cf0f585938ede9eca890a6eb326d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68f654198c1e01d97f1378b35d7c68ca.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d1fb48daae6191e74ca31896e7aedae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
您最近一年使用:0次
解题方法
5 . 三角形ABC中,
,点E是边BC上的动点,当E为BC中点时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3860b36c77e1d581c19c8ecafe8fc0cb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/a27be820-ae1b-4578-88d1-351f8215ab8f.png?resizew=182)
(1)求
和
;
(2)
是
延长线上的点,
,当
在
上运动时,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af32ecdc0dc2f1a60b47f3311a0587d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3860b36c77e1d581c19c8ecafe8fc0cb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/a27be820-ae1b-4578-88d1-351f8215ab8f.png?resizew=182)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198961ca89e8f8ba15da35191f0e30e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552c18d2d32482e139666c24f11c2eec.png)
您最近一年使用:0次
2021-06-22更新
|
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4卷引用:山东省六校(泰安一中、菏泽一中、章丘四中、东营一中、济宁一中、聊城一中、胜利一中)2020-2021学年高一6月“山东学情”联考数学试题
山东省六校(泰安一中、菏泽一中、章丘四中、东营一中、济宁一中、聊城一中、胜利一中)2020-2021学年高一6月“山东学情”联考数学试题1.6 解三角形测试(已下线)专题6.3 平面向量的应用(练)- 2022年高考数学一轮复习讲练测(新教材新高考)(已下线)5.4 正、余弦定理(精练)(提升版)-2