1 . 如图所示,在空间四边形
中,
,点
在
上,且
为
中点,若
.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee477d164d38ff067fc4ce342cf6d380.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/352afb2166bc2d282d55bd7bba4388e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd62f74def1f5321be43234e2ebd6263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13447f65fda380f81d32ac3d7835a887.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee477d164d38ff067fc4ce342cf6d380.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/15/b2fe39eb-853b-4ee4-a59b-0b8652a9ee45.png?resizew=149)
您最近一年使用:0次
2023-02-13更新
|
414次组卷
|
3卷引用:山东省济宁市2022-2023学年高二上学期期末数学试题
山东省济宁市2022-2023学年高二上学期期末数学试题福建省福州市福清港头中学2022-2023学年高二下学期期末质量检查数学试题(已下线)第01讲:空间向量(必刷9大考题+9大题型)-2023-2024学年高二数学上学期《考点·题型·难点》期末高效复习(人教A版2019选择性必修第一册)
名校
解题方法
2 . 如图,在平行六面体
中,
为
的中点,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee477d164d38ff067fc4ce342cf6d380.png)
______ ;若该六面体的棱长都为2,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c69a9feb14d4b9ccba6ae42837fd73.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40e8e2e79b8147dbb1a565531a183d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee477d164d38ff067fc4ce342cf6d380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f2a0a606abf89fbd04687717b366ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c69a9feb14d4b9ccba6ae42837fd73.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/08ab4f10-2b11-4444-bd5e-4a86bb510da1.png?resizew=180)
您最近一年使用:0次
2022-12-22更新
|
510次组卷
|
3卷引用:山东省济宁市邹城市2022-2023学年高二上学期期末数学试题
3 . 在图四棱锥P-ABCD中,ABCD为平行四边形,AC与BD交于O,G为BD上一点,BG=3GD,
=a,
=b,
=c,
=_________ .(用基底{a,b,c}表示向量
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a85adcce52da603a6f0688045159f3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb1fdfc2c4bdc81e77e02e6ea8fbfe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6185ef862446af80078a2e4837dc35bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8a0cdef0a166c5f14e9feb868a11cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8a0cdef0a166c5f14e9feb868a11cc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/89c7436a-3e86-44df-9cea-2c032cfc75ed.png?resizew=196)
您最近一年使用:0次