名校
解题方法
1 . 如图所示,在边长为3的等边三角形
中,
,且点P在以
的中点O为圆心、
为半径的半圆上,若
,则下列说法正确的是____________ .
①
②
的最大值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb03865bc5bbd5acdf68260d6a1454f6.png)
③
最大值为9 ④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3de75a2e98f7c16a0be0ccbb8fd4b72b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a81889370d45239939a36de53c4445d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95d146bdcc8ac0a256c12696e9b9826.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc5c4b886a48affa3e6103f7e4c2bfd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb03865bc5bbd5acdf68260d6a1454f6.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27ccdceb57c6df84b42b1b9032a636e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3de75a2e98f7c16a0be0ccbb8fd4b72b.png)
您最近一年使用:0次
2 . 如图,
,
,线段
,
相交于点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b18bf5477ab809cf5b133a045b0ea8e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79b194152945f719c21bbe5d525338d.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/a0ed1ec316bc54c37c4286c208f55667.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
解题方法
3 . 在正方体
中,点
满足
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1be5693b11b4198a234beb9cf3226d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee72261f6901e62dfd0ffe547406544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e2e01346f60857ff635bb766802e57.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
4 . 已知
,
是两个不共线的向量.
(1)若
,
,
,证明:
三点共线;
(2)若向量
,
共线,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d45377b25f0803edac82b114e213087e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16cc4a25ee56365345ef1cd5fa31352a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a35fb46f8c3a49b3010e1f5390a2ec64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def10a4121a1a87d6c88e70db14cf67e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37763527bb0ff5b80217258a8e6e5531.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
名校
解题方法
5 . 如图,在
中,点
满足
是线段
的中点,过点
的直线与边
分别交于点
.
,求
和
的值;
(2)若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc098fa02493b905d36905c99976bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8954ac84d5a64358d2876a62f2a439b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/296f25357d5576fb3ccaff55c091c95c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c227da7ad9d24ae3e3740febf9f293.png)
您最近一年使用:0次
2024-05-12更新
|
886次组卷
|
3卷引用:山东省实验中学2023-2024学年高一下学期4月期中考试数学试题
山东省实验中学2023-2024学年高一下学期4月期中考试数学试题(已下线)专题01 平面向量(2)-期末考点大串讲(苏教版(2019))安徽省安庆市怀宁县新安中学2023-2024学年高一下学期6月月考数学试卷
名校
6 . 如图所示,在
中,点O是BC的中点,过点O的直线分别交直线AB、AC于不同的两点M、N,若
,
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328e8ec9120d4f382d63802421770a14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a10a8252aaca38bed5ab3657e4c122.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd93ee03569849295ebde055410d1b84.png)
A.5 | B.9 | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-04更新
|
708次组卷
|
5卷引用:山东省菏泽市第一中学八一路校区2023-2024学年高一下学期第三次月考数学试题
名校
解题方法
7 . 如图1所示,在△ABC中,点D在线段BC上,满足
,G是线段AB上的点,且满足
,线段CG与线段AD交于点O.
,求实数t;
(2)如图2所示,过点O的直线与边AB,AC分别交于点E,F,设
,
(
,
);求
的最大值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b4dc95aa3f1f159dbf4c61239a8df7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffe1c7041b1b338246d456672db377b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40afbc01f47b02602acee4b39c1fbc91.png)
(2)如图2所示,过点O的直线与边AB,AC分别交于点E,F,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61cb96903ddcfe069075ef87760ff6a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e12eb1c1546ff4ae9878ffa87136c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be362dec96173f246ff747264007817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c98c0ec4c99989333faa478a946985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1adebff9fb726cd58eda1ef994890901.png)
您最近一年使用:0次
名校
8 . 在
中,
,若点
为
的垂心,且满足
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.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/2a7dbe3efc9e9339b5ed4f1c12976dc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3acf551f38311eccdcc325c0d283473.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-04-30更新
|
328次组卷
|
3卷引用:山东省潍坊市部分学校2023-2024学年高一下学期第二次月考数学试题
山东省潍坊市部分学校2023-2024学年高一下学期第二次月考数学试题福建省福州第一中学2023-2024学年高一下学期4月第三学段模块考试数学试题(已下线)【练】专题五 平面向量的综合问题(压轴大全)
解题方法
9 . 如图,在
中,
为
的中点,
与
交于点
,若
,则下面对于
的描述正确的是( )
②,
③,
④,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fdef24fc79459673e51803d4a3af9b0.png)
![](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/3600a5a995fe1a5261b09fd90ad221bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833d37b9c21319f3965bb4d19c9ebe72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af2d38cf365e4389c0d3f18ecfa890e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/313ebe00856771b4148d8fcad7689582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2452a7c33b76eb4d56f32926b9cdf28f.png)
③,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3732b0e4d40be0f6be43983aad9f6d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fdef24fc79459673e51803d4a3af9b0.png)
A.①③ | B.②③ | C.①④ | D.②④ |
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2024-04-16更新
|
176次组卷
|
2卷引用:山东省学情2023-2024学年高一下学期第一次阶段性调研数学试题
10 . 已知点G是边长为2的正
的中心,线段DE经过点G分别交边AB,AC于点D,E,设
,
,其中
,
.
(1)求
的值;
(2)求
面积的最小值,并指出相应的m,n的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad3880439c2e4ac27a180d6c6bcc477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a480e439a7f2a25516d2381e8a19e2ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9977b59a789b7cfdd49185deb2b1b0d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5842fed631f0d796c849e0c4cc6d6c0a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27e62ba44cbfec6823ebc1f0c7457fb.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
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