设向量
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f233803ccc487b243f31ae3b2846d60.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db31b05cd6e12ee15c9ab1219eedcbec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61f1b1d236c77645c4a610c7c45a0b89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f233803ccc487b243f31ae3b2846d60.png)
更新时间:2018-01-25 23:49:47
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相似题推荐
填空题-单空题
|
较易
(0.85)
解题方法
【推荐1】已知向量
,若
与
共线,则m的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54aff3b92e8e442dccf6b8af6f6da6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc02789ffe464847b096ae13f197ccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bca35e52b8430246a1cf96e9e617cce.png)
您最近一年使用:0次
填空题-单空题
|
较易
(0.85)
名校
【推荐2】已知等差数列
的前
项和为
,向量
,
,
,且
,则用
表示![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0719844e0261af3b625d9673e5926.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e311559b12b8a4ab9adfab542f205fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4036b7cd5f986c6f4dbffa3c1c10ab61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee14c64843c7d16a9a52d16b3df34fb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1c01af540bae8be12b6d94ad0cfa00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d1e7c03f57de732263211f5799bdd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0719844e0261af3b625d9673e5926.png)
您最近一年使用:0次