名校
1 . 梯形
中,
,点
在线段
上,点
在线段
上,且
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79c45fdcc97df73a2b6cb4dec2db6aad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942d13ec8ed63cf531a37d9872ca86bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-12-24更新
|
1354次组卷
|
2卷引用:天津市耀华中学2018-2019学年高三(下)开学考数学试题(理科)
2 . 如图,在
中,
是
的中点,
在边
上,
,
与
交于点
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac10beddabce0a8176a0dcb5f640628f.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833a1317d15bdad58ca21d3934a9a2b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/898febffc8af46cd1076af70175ceb5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac10beddabce0a8176a0dcb5f640628f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/3d2b174b-1ada-4df3-89dd-26c37302990d.png?resizew=176)
您最近一年使用:0次
名校
3 . 如图,在边长为1的正三角形ABC中,E、F分别为边AB、AC上的动点,且满足
,
,其中m,
,
,M、N分别是EF、BC的中点,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209d9d37d7294bbccb659871d4186ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cf991f2a0d4d2aec3ae2b472a0f8a69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6fc8002da2181676c390613b61eb20a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c754209fa050a147f5b540cb89521a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94d472918ad80dbd61058c3e099dd93.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/a0156993-9513-42c6-b5cf-a75415b142d1.png?resizew=158)
您最近一年使用:0次
2019-03-23更新
|
661次组卷
|
2卷引用:天津市滨海新区大港第一中学2021--2022学年高三上学期入学测试数学试题
名校
4 . 如图,在三角形
中,已知
,
,
,点
为
的三等分点.则
的取值范围为
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/f0497ab5-7a8b-46a8-a67f-e73db12443c7.png?resizew=133)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0ed15020c1c669e06a3a3b1557242e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5499350b4eee680e875fd87fd8f128f8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/f0497ab5-7a8b-46a8-a67f-e73db12443c7.png?resizew=133)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-06-12更新
|
955次组卷
|
3卷引用:2017届天津耀华中学高三上学期开学考试数学(文)试卷