名校
1 . 如图,在△OAB中,P为线段AB上的一个动点(不含端点),且满足
.
![](https://img.xkw.com/dksih/QBM/2023/6/20/3263775063826432/3267196066807808/STEM/4452bdc0cd5e4b49aaabbd4ab9957496.png?resizew=158)
(1)若
,用向量
,
表示
;
(2)在(1)的条件下,若
,
,且
,求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba4d488d56b95a44a6b0b40d3e89c010.png)
![](https://img.xkw.com/dksih/QBM/2023/6/20/3263775063826432/3267196066807808/STEM/4452bdc0cd5e4b49aaabbd4ab9957496.png?resizew=158)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1c3ea872a20fdc1843cb5ffce8a554.png)
![](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/91174b2336306191ba275a87864172b7.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45252e14150ec0959437856eb30ef624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a600402d668cfc808ecb2cbd990f9f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff5c21185c13eae675906dabd3593c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7a66e27ef92fcc51530e54533e23973.png)
您最近一年使用:0次
2023-06-25更新
|
1122次组卷
|
4卷引用:四川省成都市成都外国语学校2022-2023学年高一下学期期末数学试题
名校
2 . 在锐角△ABC中,记△ABC的内角A,B,C的对边分别为a,b,c,
,点O为△ABC的所在平面内一点,且满足
.
(1)若
,求
的值;
(2)在(1)条件下,求
的最小值;
(3)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b009be18658ed3d24399a0c6617c2056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5baac0dd8be4c646a32213e3a979f9d3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fadd2e6f0aa16c2c466c904474ffc79c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6894da6183fb8b8e7ac9b9f98cdb82.png)
(2)在(1)条件下,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a442e21ce6d4de5fd2392ad94f7dace3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8954ac84d5a64358d2876a62f2a439b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
您最近一年使用:0次
解题方法
3 . 设
…
是半径为1的圆O内接正n边形,则由圆的旋转不变性知:
.据此可推断下列结论正确的有( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4a949c00526fddf435423272cf10f25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac7de3440611a532fd54b9331563e22.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
2023高一下·全国·专题练习
解题方法
4 . 在
中,已知点
分别在边
上,且
,
.用向量
、
表示
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a51949f48ee8cf746851ba779b078e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3355e2fa0ac6c675f02ee36c3ced4f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7749006d7e99bbec95b12e044bf8f87b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179bb3ea6805d27e9490144ecd674e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f1b06a56fc382feed28e01f1ad102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa8c53645db602c72b00b599c2c0ff97.png)
您最近一年使用:0次
5 . 如图,在
中,点
,
分别在边
和边
上,
,
分别为
和
的三等分点,点
靠近点
,点
靠近点
,
交
于点
,设
,
,则
( )
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c20cbdfe479954ba2bc33142bc931c33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/066bca5c293e81c8579c85cb365c4a34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc79e85debcf55a8b62e145b21ed63ee.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-06-24更新
|
1589次组卷
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8卷引用:江苏省苏州市2022-2023学年高一下学期期末迎考数学试题
江苏省苏州市2022-2023学年高一下学期期末迎考数学试题河南省南阳市方城县2022-2023学年高一下学期期末数学试题(已下线)广东省广州市中山大学附属中学2024届高三上学期期中数学试题变式题1-5(已下线)第六章 平面向量及其应用(知识归纳+题型突破)1-单元速记·巧练(人教A版2019必修第二册)(已下线)模块一专题2 《平面向量基本定理与坐标运算》 【讲】(苏教版)(已下线)高一下学期期末复习选择题压轴题二十三大题型专练(1)-举一反三系列(人教A版2019必修第二册)(已下线)江苏省高一下学期期末真题必刷 -期末考点大串讲(苏教版(2019))(已下线)考点巩固卷12 平面向量(十二大考点)
名校
6 . 已知向量
,
,下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19630491c8d9796cec5e569d79966ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14dfa17632f933e0468b8a7864259517.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.当![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-06-24更新
|
428次组卷
|
3卷引用:江苏省苏州市2022-2023学年高一下学期期末迎考数学试题
7 . 在钝角三角形
中,
,
,
,
.
(1)求
的值;
(2)已知
,
,
三点共线,若
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/224c7ab70d63c79fdb2a4740ea0a14b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff400c098ae6bf6abd24651a5a21114e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21bfe273ec30b01f3245dfbf78b15083.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cea2afaa60ee5fc7f20dd4c96ebd48a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
8 . 在菱形ABCD中,
,
,记
,
.
(1)用
,
表示
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d1aecd69a487a3698298e25b18ab023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54929ee2b6983c273fc8b662fb343767.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e984585ddf28c039219afcebf229de7.png)
(1)用
![](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/ae54940f33b8714da5fe3b7546f8b3dc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aaa5ee309e24cf7c4888014e773729a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5201fc26d013f6fb889933c0e32f5c53.png)
您最近一年使用:0次
9 . 平面向量
,
,
满足
,
,
与
夹角为
,且
,则下列结论正确的是( )
![](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/73a0b19e69be46452425916a0fcb49c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7958a6bddd1d578bbd6fbcb92e3f6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2396cac4b185cf1f1a67dad9248481c.png)
![](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/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c0fdc89d882af77a443cd1d0441056.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
名校
10 . 如图所示,
中,点
是线段
的中点,
是线段
上的动点,则
,则
的最小值( )
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7bf84aadefeb467caed842d9d19f84b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e02472db926a02cf3545a22dc0e1f0c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/27/09ef6465-39bb-451d-b39d-f3bf1008fc63.png?resizew=181)
A.1 | B.3 | C.5 | D.8 |
您最近一年使用:0次
2023-06-22更新
|
811次组卷
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4卷引用:浙江省精诚联盟2022-2023学年高一下学期5月联考数学试题
浙江省精诚联盟2022-2023学年高一下学期5月联考数学试题重庆市第八中学校2023-2024学年高二上学期开学适应性训练数学试题(已下线)第03讲 平面向量基本定理及坐标表示-【寒假预科讲义】(人教A版2019必修第一册)(已下线)专题05 平面向量基本定理-【寒假自学课】(苏教版2019)