已知
,
,且
,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f33c147052e4209f1feccd1fe9b21895.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a749cd14f10dc6a339c3caf92dc8c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.3 | C.4 | D.5 |
更新时间:2023-12-12 12:13:21
|
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单选题
|
较易
(0.85)
【推荐1】已知向量
,
,则下列结论不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b36554d98cc5ce584adb04209ece057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/255b0a14c6ae442e7854dd5ed6a6e5c8.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐2】已知点
,
,
,点
在平面
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4098582bf9572f219d7a7d1f30562d3.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.1 | C.2 | D.0 |
您最近一年使用:0次
单选题
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较易
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解题方法
【推荐1】已知直线
的方向向量为
,平面
的法向量为
,若
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176793cf1f8d25a93e4eb4f7f0c5b647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff259ba50b735db32427fc0ebfbdfdaf.png)
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A.![]() | B.![]() | C.1 | D.4 |
您最近一年使用:0次
单选题
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较易
(0.85)
【推荐2】已知向量
,
,且
与
互相垂直,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419830a9851022b7da1b6dc632d90e70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9162f6b251803ff1c49fa8e878d0ad1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40436543cc51f42b5b5d93e55a407ce4.png)
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A.-2 | B.2 | C.6 | D.8 |
您最近一年使用:0次