名校
解题方法
1 . 已知D,E分别为
的边BC,AC的中点,且
,
,则
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb428e0cfc07acab10e19aff3fab8ca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d8dbaa9636a89d5e73926d77a4ce5c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 如图所示,空间四边形
中,点
分别为
的中点,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86e203b7c9a6600e0272c58a23733490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc59346a2fe54a522ac46d7a430df97e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a014dff8997c661055229de29c61cfc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/9/a98a63c7-8787-4a4e-8090-5d42adf522fe.png?resizew=197)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-10-19更新
|
605次组卷
|
4卷引用:重庆市育才中学校2023-2024学年高二上学期期中考试数学试题
重庆市育才中学校2023-2024学年高二上学期期中考试数学试题(已下线)重庆市巴南区重庆实验中学校2023-2024学年高二上学期期中数学试题广西壮族自治区河池市八校2023-2024学年高二上学期第一次联考(10月)数学试题广东省潮州市高级中学2023-2024学年高二上学期级第二次阶段考试试卷
名校
3 . 已知
,
,
,
四点互不重合且任意三点不共线,则下列式子中能使
成为空间的一个基底的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926e7b3fe62dd3bb6c283d4d8cce9eb6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2021-10-01更新
|
476次组卷
|
2卷引用:重庆市五校2022-2023学年高二上学期10月期中联考数学试题
名校
解题方法
4 . 如图,在平行四边形
中,
,
为
的中点,
为线段
上一点,且满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
___________ ;若
的面积为
,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b96fac11d72f72c805dbddb8da72d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6bc857253bfddc4aead964b988e0a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64daad01a771e6fc2d5f27deab488d2d.png)
您最近一年使用:0次
2021-07-10更新
|
1711次组卷
|
7卷引用:重庆市第八中学校2021-2022学年高二(艺术班)下学期期中数学试题