解题方法
1 . 已知平面向量
,
,
,若
,则 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da76ca97469197b1d09b87339f5ace11.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/502898f458824b8254404da78e7d67fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025b8181ed20645b3f89c5e58eef8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5590ccec7906c52bbd31d139446d9d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069da5c624837df29947b7b8bf722097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da76ca97469197b1d09b87339f5ace11.png)
您最近一年使用:0次
2021-03-03更新
|
2264次组卷
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6卷引用:安徽省皖智教育A10联盟2021届高三下学期开年考文科数学试题
名校
2 . 已知在Rt△ABC中,AC⊥BC,
,若B、C、D三点共线,则m+n=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1732b682ca6a89dade07db3542df0c8c.png)
您最近一年使用:0次
2020-03-17更新
|
437次组卷
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3卷引用:2019届安徽省马鞍山市第二中学高三下学期2月开学考试数学(理)试题