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1 . 已知等边△ABC的边长为
,三个动点D、E、F分别在线段BC、AC、AB上(包含端点),动点M在△ABC的外接圆上,且满足:
,
,
,其中
,
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e70c3b5763a0226f1aa907828ea7bf44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27a93a1c510ae628794eb9a90362b9cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668a1dd51b1ef1749c75007fbf45e923.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cefeddff52b02a43831beeb4bb6faa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cfcb9b3fc83f8c01e0db6d3d71ca5da.png)
您最近一年使用:0次
名校
2 . 如图,在等腰梯形
中,
,
,
是
的中点,点
在以
为圆心,
为半径的圆弧
上变动,
为圆弧
与
的交点,若
,其中
,
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1593953b21fe85d6dbf615f165e569a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1199af8cf89cf2260e262b9f30d5a423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01f56a22d95eab351e09da1afb8153bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a58464a16629aa18aa99187cb0d398.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/0d0f2335-a771-4a79-8070-a9980cce7201.png?resizew=189)
您最近一年使用:0次
2020-09-05更新
|
452次组卷
|
2卷引用:天津市实验中学2019-2020学年高二(上)第二次段考数学试题