解题方法
1 . 在直角
中,
,点P为平面内一动点,且满足
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98aa2d95ef06695d19891a4b198e6233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fe3951a771920ce75d8e9e06419b572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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名校
解题方法
2 . 设
是单位圆上不同的两个定点,点
为圆心,点
是单位圆上的动点,点
满足
(
为锐角)线段
交
于点
(不包括
),点
在射线
上运动且在圆外,过
作圆的两条切线
.
(1)求
的范围
(2)求
的最小值,
(3)若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7818812e33052be4de712cbbbb21e2e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec8858389f4c3156a946ba8bf0d8a7b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b8d5cf36f04941f4ad49fe4c5e26133.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8eb37a4dd75318dcbd836395e575bd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e438bc5acc5cc10b3e7138279949a2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f63a42e22f8bc63465f595caf10e5842.png)
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2024-04-01更新
|
865次组卷
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4卷引用:浙江省精诚联盟2023-2024学年高一下学期3月联考数学试题
解题方法
3 . 已知平面向量
的夹角为
,满足
.平面向量
在
上的投影之和为2,则
的最小值是___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ccba3b87a8a48ac3dd5f72d00bdb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98a268b99842456d3af045077b88b9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb573cc0f30d5c32cdad1510793f0e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ccba3b87a8a48ac3dd5f72d00bdb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c8b6525cb8f97c5de980b90223f9c0.png)
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2023·全国·模拟预测
名校
4 . 如图,在直四棱柱
中,底面ABCD为菱形,
,
,P为
的中点,点Q满足
,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/991451c5002137302527700e195220e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b16f1a5e66c62af8c2a043bf59ba9874.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
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解题方法
5 . 已知
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e850c81552dba41c365d90482708c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34bbb591a36ed03340ccc0a18e12e3c6.png)
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6 . 如图,在
中,
分别为
上的点,且
,
,
.设
为四边形
内一点(
点不在边界上),若
,则实数
的取值范围为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927456b0989846a2f1573844bbaa2105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/746ee1515a178948b04f535705c6f738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ef4036427f8a42a22bc5ed0ae26189.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19c2dcc2a3955011e0e503de6225fca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e77686cf448ff6cea9bfc021581da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a61d8bedef61745ee4fd89a8c0c119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3c25c92950e902bf3d79a41cb38e99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/3ad0d689-3d51-4bf1-9273-03aa043e42b5.png?resizew=218)
您最近一年使用:0次
2019-06-25更新
|
4335次组卷
|
11卷引用:吉林省蛟河市一中2018-2019学年高一下学期第三次测试数学试题
吉林省蛟河市一中2018-2019学年高一下学期第三次测试数学试题人教A版(2019) 必修第二册 突围者 第六章 第三节 课时1平面向量基本定理2019年全国高中数学联赛浙江省预赛天津市耀华中学2021届高三下学期一模数学试题山东省新泰市第一中学2021-2022学年高一下学期期中考试数学试题苏教版(2019) 必修第二册 过关斩将 第9章 9.3.1 平面向量基本定理(已下线)6.2.1向量的加法运算(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)微专题02 平面向量的基本定理(1)-【微专题】2022-2023学年高一数学常考点微专题提分精练(人教A版2019必修第二册)上海市上海中学2022-2023学年高一下学期期末数学试题(已下线)重难点专题04 妙用等和线解决平面向量系数和、差、商问题-【帮课堂】(苏教版2019必修第二册)(已下线)【讲】 专题一 平面向量线性运算的最值问题(压轴大全)
名校
7 . 对平面向量
,定义
.
(1)设
,求
;
(2)设
,
,
,
,
,点
是平面内的动点,其中
是整数.
(ⅰ)记
,
,
,
,
的最大值为
,直接写出
的最小值及当
取最小值时,点
的坐标.
(ⅱ)记
.求
的最小值及相应的点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87ed7a2129cf28e0aa94bd67f5613a1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e8792f39ca6d670b0e15bd3768f3ea8.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89d216202dc5ff241a7aa4edd70e20e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4d214ed23af246ddf8907e779ad0577.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40630a669f4eedf626bc24851df10c85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852b303689c31189cd47bb4a3220f9fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c15296f6eac16b5dd2138daed57b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e510dce937c125960239544063c9c705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9433bf9c29c2a606923a3fc1d1c9aeee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
(ⅰ)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1068500bbce9ad7de2af4915f0cce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/330d61c6bae0e88cdb2a0290644b6fd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e5acbe9290ce7272321ab219356b47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25c621081b446da79300f2c079885359.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b9673c52c5c9da4575cee3d03a843d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa188a6ad6292021d1a892955ff9111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa188a6ad6292021d1a892955ff9111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa188a6ad6292021d1a892955ff9111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(ⅱ)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58c0a397482db8fc3c17833bdc44d44d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f87cee20512a1ba683c27100196be22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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解题方法
8 . 在
中,
,
.点
满足
.过点
的直线
分别与边
交于点
且
,
.已知点
为
的外心,
,则
为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229cba9717ed19f430ba898904feeae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9dd98d8fc8a58cb780c04be01b56e83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec8f07467d27dc136c8d7d51ff54780b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ec5c4814bfcd7b1bdb3a0d5d07b2a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5daab415cd0535883acba65cee9bf456.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb825053b6b0576cd5c34f0a3ce20726.png)
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2022-04-27更新
|
1455次组卷
|
7卷引用:四川省凉山州西昌市2021-2022学年高一下学期期中考试数学(文)试题
四川省凉山州西昌市2021-2022学年高一下学期期中考试数学(文)试题四川省凉山州西昌市2021-2022学年高一下学期期中考试数学(理)试题(已下线)专题4平面向量综合闯关 (提升版)(已下线)专题13 平面向量(选填题)-2(已下线)重难点突破01 奔驰定理与四心问题(五大题型)(已下线)平面向量及其运算(已下线)【练】专题五 平面向量的综合问题(压轴大全)
名校
9 . 在
中,
,D为BC上一点,E为AD上一点,F为EC上一点,且
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02cd4fd97a975f810756a0b1324dcc93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8cabcef1cee1213140371c499339864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f46f19939f38833f9152942f8241b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfb2a9124572cbb2748323c726c456a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d18e0f2bd21f30068b79b29a1a19f0a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
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2022-10-05更新
|
1172次组卷
|
4卷引用:江苏省泰州市泰兴中学2022-2023学年高三上学期第一次调研考试数学试题
10 . 已知非零平面向量
满足
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab7cad34fccd0fe584087604e863f352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480df6a1b24c07b8116bd02603617740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c76bba8fc146493e28131e77e6a4cb7.png)
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