解题方法
1 . 已知向量
,
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2010ca4e007806fcd20b38f11dd8296e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b97a47a667648dfd8c7895de4d3678da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c022a4c7c892c861186f0281184469c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
您最近一年使用:0次
名校
2 . 已知向量
=(1,m),
=(2,4).若
,则实数m=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff409cd3886c767afb13c9a869c5f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6570cd7c2f81c9fcffd2c64664f1564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07bd57dd68879c0d78a2c42b9e724584.png)
您最近一年使用:0次
2021-07-05更新
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872次组卷
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3卷引用:2023年上海市高中学业水平合格性考试【考前模拟卷05】数学试题