名校
1 . 已知向量
,
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/152a6437e4a84f7921ed58d03f6bc05f.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d42de47fdee791fa28774d048aaca70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c9d2759e09e491eb5a224b82f8329b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70facc9bc02af0867d248407bd317c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72d76fbbd1afa09aa65e149c195f32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/152a6437e4a84f7921ed58d03f6bc05f.png)
您最近一年使用:0次
2022-04-19更新
|
449次组卷
|
4卷引用:湖南省邵阳市、郴州市2022届高三下学期3月二模数学试题
名校
2 . 已知平面向量
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7787902056794fd718bfeec12825522b.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/444ba76b06bbd289344a64eb32212bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6569e50f43b3d8645652ecc13b62066e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974149d5e840f4a328a1d3f02a002cec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7787902056794fd718bfeec12825522b.png)
您最近一年使用:0次
2022-03-29更新
|
487次组卷
|
2卷引用:湖南省常德市2022届高三下学期一模数学试题
名校
解题方法
3 . 已知向量
(2,1),
(1,k)(
),若
,则非零实数k=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7481aca88fa2c15f6f9162080b37f0d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a990fff176ad776384e5c73687bf22e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c43fb6abb010fa0e9c83252df4cefae.png)
您最近一年使用:0次