名校
解题方法
1 . 如图,已知
为等边三角形,点 G是
的重心.过点G的直线l与线段AB交于点D,与线段 AC交于点
设
,
,且
设
的周长为
,
的周长为
,设
,记
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea7ef4a3da53511ce0ef1b55b28b990b.png)
__________ ,
的值域为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e28ce60503fab70ce1797449d90dadc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63b83647557c93d7f7e9ceee524601a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2694abaac969cf6ce51a009a679fe300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee843b8908f021e14f112b87e4e48d61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7936359df4c926b72b48c6fdae55f12d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76f79be89b8c6227b68eded6b675546.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a911a7aae28cca3434079307fb5ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d5cc439e1e4a8922491a7bbad68494.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea7ef4a3da53511ce0ef1b55b28b990b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2709ca478fb15ea08e8aa55328eae8e6.png)
![](https://img.xkw.com/dksih/QBM/2023/11/15/3368355709321216/3369163603230720/STEM/5b50e14d4b624d36bbb9af9537f22c48.png?resizew=159)
您最近一年使用:0次
名校
解题方法
2 . 如图,
,
,
与
交于
点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e644f0e5c8ef10c0ee1a3a129714a91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c3a44624234b62bdba8b7e28a39a4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6858549a3eb7349575c9e8e44d281a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
![](https://img.xkw.com/dksih/QBM/2021/8/28/2796010114875392/2796655518244864/STEM/41ce7e8c-4316-478a-bada-489b695fb56c.png?resizew=284)
您最近一年使用:0次
名校
3 . 已知
为
内一点,
,则
,
的面积之比为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f368dbe6a274ae1fad8ea4f8e8a7455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9524e3810e06dc781285f1289e75d653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4234cf4d8159f5df0333bcc269ffe099.png)
您最近一年使用:0次
2021-08-07更新
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5卷引用:湖北省武汉市吴家山中学2021-2022学年高二上学期10月月考数学试题
湖北省武汉市吴家山中学2021-2022学年高二上学期10月月考数学试题浙江省宁波市2020-2021学年高一下学期期末数学试题(已下线)第八章 向量专练2—共线定理的应用-2022届高三数学一轮复习(已下线)5.1 平面向量的线性运算及基本定理(精讲)-【一隅三反】2023年高考数学一轮复习(基础版)(新高考地区专用)(已下线)10.3 平面向量的应用(精练)