名校
1 . 已知三棱锥
中,点M为棱
的中点,点G为
的重心,设
,
,
,则向量
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4278c0911e7df78965e78cff69cac5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/732e8008564ec12576ac60e498b28067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e42eacb57037d08cf18946fe8e33bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ee2e0dc73bc0f68063d55843ee2263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c8a0e0968f08b00d8213e23e37f88c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-10-30更新
|
670次组卷
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5卷引用:湖北省随州市曾都区第一中学2022-2023学年高二上学期期中模拟数学试题
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2 . 如图在平行六面体
中,
相交于
,
为
的中点,设
,
,
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/ae532317-c3e4-4f39-a444-9e756910b76e.png?resizew=193)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3c032441543354c154ee67d744abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec275f823ae17afdba53301fcbd2aa43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184359fe3cadc363cf4ebe586c2b3db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2410e0e103cc41264a2d0f5c0e3f3ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f891b4964126b1f0f637ec5186aa8a31.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/ae532317-c3e4-4f39-a444-9e756910b76e.png?resizew=193)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2022-11-09更新
|
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4卷引用:湖北省荆、荆、襄、宜四地七校考试联盟2022-2023学年高二上学期期中联考数学试题
湖北省荆、荆、襄、宜四地七校考试联盟2022-2023学年高二上学期期中联考数学试题陕西省榆林市2022-2023学年高二上学期期末教学质量过程性评价理科数学试题河北省石家庄一中2023-2024学年高二上学期第三次月考(12月)数学试题(已下线)专题01空间向量及其运算(4个知识点8种题型3个易错点)(3)
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3 . 已知四棱锥
,底面
为平行四边形,
分别为
,
上的点,
,设
,则向量
用
为基底表示为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/83d8592e-9abb-403f-a880-1c14bb5ab8cd.png?resizew=142)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c62e91b0a8e137d5253cb923cb47e26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab983cfea380dc4ac133f2da557ad6d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd4b9ad667f6da79bc3a5737cbc1eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8d2051594370095e72e173fd95888a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/83d8592e-9abb-403f-a880-1c14bb5ab8cd.png?resizew=142)
A.![]() | B.![]() |
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2022-01-25更新
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3卷引用:湖北省黄冈市2021~2022学年高二上学期期末数学试题
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4 . 在棱长为
的正方体
中,
为正方体内一动点(包括表面),若
且
. 则点
所有可能的位置所构成的几何体的体积是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](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/c81f3d7d77e49e423e1315d629beb677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184bdabcc83fb710ad7fab7fbea77065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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6卷引用:湖北省荆州市沙市中学2022-2023学年高二上学期第一次月考数学试题