1 . 已知向量
和单位向量
满足
,则
的最大值是____ .
![](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/0b0a0a253efe591ee2e096ac06bc5ac3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0fe4d834e8eaca89ceaf9c64cdabd9.png)
您最近一年使用:0次
解题方法
2 . 在
中,
,
,
为
的外接圆圆心,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12c8652a075504313535e2b413f76bb3.png)
_______ ,
的面积最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810a2cc3f61a961c1196fbd0e11caabb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.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/12c8652a075504313535e2b413f76bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
3 . 已知向量
与
的夹角为
,若
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04e8382c1ce605c712a1d080fd4e1684.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/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28940c012997a0654d7b3d0c51cad3e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72d76fbbd1afa09aa65e149c195f32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04e8382c1ce605c712a1d080fd4e1684.png)
您最近一年使用:0次
2020-05-05更新
|
418次组卷
|
2卷引用:湖南省长沙市长郡中学2018-2019学年高二下学期期中数学试题
名校
解题方法
4 . 已知
、
是平面内的两个单位向量,若
,则
的最大值是________ .
![](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/cd6ed7870877417490819cb0fa53692f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/303645f6bb2511b74c0ddb51c1c9a731.png)
您最近一年使用:0次
5 . 已知圆
是圆
上的一条动直径,点
是直线
上的动点,则
的最小值是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f41171492ec3de95a20849f4a31c9f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31b9442c77f394e24f722e626d85d249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc86613c8ad7fb3c3984870bf33cfe43.png)
您最近一年使用:0次
2019-11-20更新
|
688次组卷
|
4卷引用:广东省广州西关外语学校与广州理工实验学校联盟2022-2023学年高二上学期期中数学试题
6 . 在正△
中,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465f4f749b575f199874f011ada4274f.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59125a0220d722e4bcab5c7caf9cbbef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465f4f749b575f199874f011ada4274f.png)
您最近一年使用:0次
名校
7 . 在锐角
中,
,
为边
上的点,
与
的面积分别为2和4,过
作
于
,
于
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f12fabee2398bdd3d27b90f82778d2.png)
_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e85b8eb4f3e02fa8ab3b49def8958444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db5e1441a49e782ff0ef46e776cde06a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f8f01137e92c0f2e63467036ae9cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761a77e11e1e45c2a8b2d34d22cf8e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f12fabee2398bdd3d27b90f82778d2.png)
您最近一年使用:0次
名校
8 . 已知
,
,
,且
,
是钝角,若
的最小值为
,则
的最小值是_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881e7b6e25cc9b55004a7419adf234cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf48c01fcf117e94fe71d56e5dd1408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b2613017de2e76bf8dd10295de827ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5558c083d34cbb0a58d3ce1dc6f5778e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0dba9cb0313cb134b015c054dd0777.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1d44e0603df1928f1b54a342e1dd3f7.png)
您最近一年使用:0次
18-19高二上·上海闵行·阶段练习
名校
9 . 已知平面上三个不同的单位向量
、
、
满足
,若
为平面内任意单位向量,则
的最大值为_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c308ea87b699ee1dcb879a568899de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5956ea1ac69a9422a2e5a9d2b82538ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3cc805723d3ecc95b4472d13bb1bb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61fcde032ce9c783445679114301674b.png)
您最近一年使用:0次
2019-12-10更新
|
356次组卷
|
5卷引用:上海市上师大附中2018-2019学年高二上学期期中数学试题
上海市上师大附中2018-2019学年高二上学期期中数学试题上海市上海师范大学附属中学2017-2018学年高二上学期期中数学试题(已下线)上海市华东师范大学第二附属中学2018-2019学年高二上学期10月月考数学试题(已下线)上海市浦东新区华东师范大学第二附属中学2017-2018学年高二上学期10月月考数学试题2017届上海市浦东新区高考二模数学试题
名校
10 . 在
中,
,三角形面积
满足
,则
与
的夹角的范围________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fea86a14b9f3584ffe2fca31be08d28e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a23505eb612060c9518e882fcb5c73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be64d59ac6538a0f4d79fb825e082081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
您最近一年使用:0次
2020-02-29更新
|
279次组卷
|
2卷引用:上海市宝山区宝山中学2017-2018学年高二上学期期中数学试题