已知向量
,
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28b6e99d71eaa7784dab1e3808a2ad4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/295115dfb69a60d1000d2027493592e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7796cec50ed668e457ae5398295533af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
A.1 | B.2 | C.3 | D.4 |
更新时间:2024-04-01 23:32:21
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容易
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名校
解题方法
【推荐1】已知向量
,
在正方形网格中的位置如图所示,若网格中每个小正方形的边长均为1,则
( )
![](https://img.xkw.com/dksih/QBM/2022/4/29/2968519555842048/2971609808396288/STEM/1ecfad83-fd3a-406b-ad00-a1eb54070035.png?resizew=184)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9afc7bfbc67ff08ae5380508d9ca746.png)
![](https://img.xkw.com/dksih/QBM/2022/4/29/2968519555842048/2971609808396288/STEM/1ecfad83-fd3a-406b-ad00-a1eb54070035.png?resizew=184)
A.6 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
容易
(0.94)
【推荐2】已知向量
,
,若
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f43cf3d3d5784f8301464faca2382b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61f1b1d236c77645c4a610c7c45a0b89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069da5c624837df29947b7b8bf722097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0fe4d834e8eaca89ceaf9c64cdabd9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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容易
(0.94)
解题方法
【推荐1】已知向量
且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aed677a7ebacc369fea4c5c93e344ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e4d2bcf4cdaab2a07ddf3640bb7ffa.png)
A.1 | B.2 | C.3 | D.-1 |
您最近一年使用:0次
单选题
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容易
(0.94)
解题方法
【推荐2】已知向量
,则下列向量中与
垂直的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be716cf70f3d7c1d0a4c5a47cb0031b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
容易
(0.94)
解题方法
【推荐1】已知
,
,若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf63cc994514d846f279e8752777a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/436288284612c61de1d8da60d9f1c26a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dced91de1b8c38aa95ffee0e5dc202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次