名校
解题方法
1 . 如图:在
中,已知
与
交于点
.
表示向量
;
(2)过点
作直线
,分别交线段
于点
,设
,若
,
,当
取得最小值时,求模长
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/000bc9f0352ba05c97e221cead7c34da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf4d994cd5b51f0f50671d29999ed038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538c1a9e933bc1e29d785eeda9cd1abc.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adaa82a6500e3a95a24168f7df243790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86e203b7c9a6600e0272c58a23733490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1517126c0fea2de010963c01d1487a8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604c949ecf3a9d4be681894a5416f3bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f616980e711ec78d7323b5aafcb39f9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32043a653eba02c79ae6395b3bcb34f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4c41a83255a091e4cdf5c1150224842.png)
您最近一年使用:0次
2024-03-21更新
|
1222次组卷
|
6卷引用:重庆市巴蜀中学校2023-2024学年高一下学期3月月考数学试题
重庆市巴蜀中学校2023-2024学年高一下学期3月月考数学试题山东省临沂市莒南第一中学2023-2024学年高一下学期3月月考数学试题(已下线)模块五 专题5 全真拔高模拟1(高一人教B版期中)安徽省合肥一六八中学2024届高三下学期检测(一)数学试题(已下线)模块五 专题5 全真拔高模拟1(苏教版期中研习高一)黑龙江省大庆市实验中学实验二部2023-2024学年高一下学期期中考试数学试卷
名校
解题方法
2 . 如图,若D点在三角形ABC的边BC上,且
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed28af19bd5234a5d817d617f8b3aa19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fc838e1477179b36ca7481ee2cc1e8.png)
A.0 | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
2023-03-18更新
|
1167次组卷
|
4卷引用:重庆市巴蜀中学校2022-2023学年高一下学期3月月考数学试题
名校
解题方法
3 . 已知
中,点D满足
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f48cb56285aa78588baa224f732ff64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/144fe5c14934ab0e440a2e3d27469935.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
您最近一年使用:0次