名校
解题方法
1 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06bf77c7d1d6c962297fe7d7622ac2f8.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d7819d4f6874db43b4dc41798e32698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e97ecaf990a636c4648956663ff6b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06bf77c7d1d6c962297fe7d7622ac2f8.png)
您最近一年使用:0次
2023-01-06更新
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638次组卷
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3卷引用:黑龙江省哈尔滨工业大学附属中学校2022-2023学年高二上学期期末数学试题
2 . 已知向量
(2,3),
(x,2),且
⊥
,则|2
3
|=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c3c0d82cbb443d84763b9b1d3f88f20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c5684ccff633c427608fb5599ba1b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2859333183a1d5749eac25f8b4e3b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efda714bc270ccf8712aaf16f7b08b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5945266a1ef2c3ecea8cfcb3b4a93eb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efda714bc270ccf8712aaf16f7b08b82.png)
A.2![]() | B.![]() | C.12 | D.13 |
您最近一年使用:0次