名校
1 . 棱长为1的正四面体
内有一点
,满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31d337068ba9ebbd3a31b54a648d109e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-11-15更新
|
151次组卷
|
2卷引用:广东省广州市六十五中2023-2024学年高二上学期期中数学试题
2 . 以下命题中,不正确的是( )
A.![]() ![]() ![]() |
B.已知向量![]() ![]() ![]() ![]() |
C.若![]() ![]() |
D.已知空间直角坐标系![]() ![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
3 . 空间直角坐标系中,已知点
,若
的中点为
,则点
的坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766e080f2377f244fd4733f51b83ea6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
4 . 若向量
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a035c8861e9fa9369d20d6b531d88dc.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff62fa204244ba460b3039ec6145c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a21450e381c552dae0578a08e4c45662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a035c8861e9fa9369d20d6b531d88dc.png)
您最近一年使用:0次
2023-11-14更新
|
208次组卷
|
3卷引用:广东省广州南方学院番禺附属中学2023-2024学年高二上学期期中数学试题
名校
5 . 已知向量
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324a130c5642d10b868d5320a8b0f375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab43747ec3deb8fd332e9763518cfd30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9043a9716d4eb6b554bab52ab9f59e43.png)
A.10 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-11-14更新
|
612次组卷
|
3卷引用:广东省广州市第十六中学2023-2024学年高二上学期期中数学试题
6 . 已知空间向量
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c44f9c2158cd5a0054ed1333da792b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7691b9e224a4612c8b67316f38461afa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3c6bd21d9c27a68b970f446f04d6df.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
2023-11-13更新
|
202次组卷
|
4卷引用:广东省广州市番禺区石北中学、石楼中学、洛溪中学等2023-2024学年高二上学期期中联考数学试题
7 . 已知向量
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f6c525c8e57519d6ddc18219b2dbdca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95fccf9ff076e96fa14a949f524d390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fc2aedae26f6f353510b5987d6d62a8.png)
A.![]() | B.![]() | C.1 | D.-1 |
您最近一年使用:0次
名校
8 . 已知空间三点
,
,
,设
,
,
.
(1)判断
的形状;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d5632f8390c6a049e74273f82c4ea6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b446b2ae2ea36202e018afe8d11a6b96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6494a66af58db82efaedbaac43544135.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de5b6afcd86c9a6ee0ec615a27dd506e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7894a1a495d4fa4d7959d94a97dabc55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffd765098995fcbcccbd30301202368.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147d813d9ed7452475cc47665b424af7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2023-11-13更新
|
204次组卷
|
2卷引用:广东省广州市华南师范大学附属中学2023-2024学年高二上学期期中数学试题
9 . 已知向量
,
,且
与
互相垂直,则k的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/838b557a3565db380daf70e30f80d53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057f57c7f0234c700205f04e094387e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0035fcdc6a2dfb5836f4dc93dcaf9386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67a5673958e175b00200a75e645c73c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-11-13更新
|
495次组卷
|
2卷引用:广东省深圳市红山中学2023-2024学年高二上学期期中数学试题
10 . 空间三点
,
,
,若
与
,
都垂直,且
,则
的坐标为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc332e0792bd16486a61c1658ccfecf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4651b166153afe74f40bc72114db370c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad74c4208335907edbaccd98dc06f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f1b06a56fc382feed28e01f1ad102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac9dc3a0df96168700809e7e2ce80214.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
您最近一年使用:0次