1 . 已知
分别为
的边
上的点,线段
和
相交于点
,若
,
,
,其中
.则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be878f5bdce9a3e9939a4ae743c803b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b1174877b02d3c54c58314fa7cd1218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d83463cbe4e6b434ce448c053cae70ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761e8ff96c96ac26682b521288a01bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c227da7ad9d24ae3e3740febf9f293.png)
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名校
解题方法
2 . 在平行四边形
中,
为
边上靠近点
的三等分点,
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e070f7f9e7f166b447e0d3a188ce0881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1adebff9fb726cd58eda1ef994890901.png)
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名校
解题方法
3 . 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)
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名校
4 . “奔驰定理”因其几何表示酷似奔驰车的标志而来,是平面向量中一个非常优美的结论,奔驰定理与三角形的四心(重心、内心、外心、垂心)有着美丽的邂逅.它的具体内容是:如图,若
是
内一点,
的面积分别为
,则有
.已知
为
的内心,且
,若
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c06b7d20cc3e6b13af9fe40fc3faf68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ccb3de366206f32e0c9045e63b2e205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b129e8572f675627f5a7a2f782413f1.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/1dcb984f7275b7047dbbd4c000e22b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0dfa5c97db56ae183a823782432cb3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
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2024-06-14更新
|
651次组卷
|
4卷引用:云南省保山市智源高级中学2023-2024学年高一下学期第二次(6月)月考数学试题
云南省保山市智源高级中学2023-2024学年高一下学期第二次(6月)月考数学试题湖南省名校联考联合体2023-2024学年高一下学期期中考试数学试题(已下线)【讲】专题五 平面向量的综合问题(压轴大全)(已下线)【练】 专题六 平面向量与三角形四心问题(压轴大全)
解题方法
5 . 如图,在
中,
分别是边AB,AC上的点,
,且
,点
是线段DE的中点,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080881113dcfedbb37be834669306a05.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab2284d326527ac5b6829c71a7b9e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0393ce62b24aa5f9b740d4cc6743b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ba1954221a03cd62f691aaa6f798fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8908d9e34f06b6a3509a1d8e999d5ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080881113dcfedbb37be834669306a05.png)
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名校
解题方法
6 . 在平面直角坐标系中,已知
为原点,
,
.若点
在
延长线上,且
,则
的坐标为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62708bf25069c3d1638c31709cd1ff3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ebc6fd817679d4d08459c0239200233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bddcff1620fed70ab8fbcb42faaed9fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f60a417106f861763455493d5697ce1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91174b2336306191ba275a87864172b7.png)
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解题方法
7 . 向量
在基底
下的坐标为
,则向量
在基底
下的坐标为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d806f27eecf5aee1e75bf35acbcd4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82e663930029a47782f44ebcc2ffba1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d806f27eecf5aee1e75bf35acbcd4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e63b2ccb815ddf4357644fbe52bc34.png)
您最近一年使用:0次
2024-04-24更新
|
312次组卷
|
3卷引用:河南省封丘县第一中学2023-2024学年高一下学期第二次阶段性测数学试题
名校
8 . 在
中,M为BC边上任意一点,N为线段AM上任意一点,若
(
,
),则
的取值范围是______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33fe1c44874df58bf1a3ebdc967dfcf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6612afffccf731637a818d5732e5ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
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解题方法
9 . 已知正三角形
的边长为2,点
满足
,且
,
,
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3284eed73b196d16dd491a09274ee8b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8610232c77741a37463feba1a66c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6958278a6ad07bf8b94826d395111d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdddaf04139a84bb1f64fc9baa414497.png)
您最近一年使用:0次
2024-04-20更新
|
847次组卷
|
3卷引用:上海市青浦高级中学2023-2024学年高一下学期5月质量检测数学试卷
解题方法
10 . 在
中,
,
,设
,其中
,当
时,点Q在某线段上运动,则该线段的长度为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24ebf4df515b28c6525dd34476731186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6300806373573f97546cbf75b031e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d74b2056b61b4e59b9d12a9263e9de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc5c0f91783c8615bb3c8686a51b093.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a8a24cc4bbdaea293644d1249a268b.png)
您最近一年使用:0次