13-14高二下·上海·期中
名校
1 . 在直三棱柱
中,底面ABC为直角三角形,
,
. 已知G与E分别为
和
的中点,D与F分别为线段
和
上的动点(不包括端点). 若
,则线段
的长度的最小值为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a9ad711b25c36dae0c2a2cedff9954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8bd8c13192ca45c16dad5d59b547220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2af2626608f61a4cfbb86494bd6df0e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781ed91456e62d6319dc8671e48a7332.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
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2016-12-03更新
|
2450次组卷
|
5卷引用:2015-2016学年湖南衡阳八中高二上第二次月考理科数学卷
2015-2016学年湖南衡阳八中高二上第二次月考理科数学卷(已下线)2013-2014学年上海市交通大学附属中学高二下学期期中数学试卷(已下线)2013-2014学年上海交大附中高二下学期期中数学试卷吉林省吉化第一高级中学校2020-2021学年高二11月月考数学(理)试题陕西省西安中学2021-2022学年高二上学期期中理科数学试题
2 . 如图,平面上有四个点A、
、
、
,其中A、
为定点,且
,
、
为动点,满足
,又
和
的面积分别为S和
,则
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27370789199513ea910a0a3e47d45bf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af2cc5f8cec8c498aa12c99c04e1c97d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a551505ae42b49904bab59b17012d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74ce61273bf61fe4c21726a052c24b6c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/7/dd19b2a8-fda7-4010-9d34-21b7597709c0.png?resizew=160)
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解题方法
3 . 已知集合
,
,则![](https://img.xkw.com/dksih/QBM/2016/1/11/1572428039094272/1572428044935168/STEM/8b6b560c47f6410c8fb4bd4c42d21504.png?resizew=56)
____ .
![](https://img.xkw.com/dksih/QBM/2016/1/11/1572428039094272/1572428044935168/STEM/ff99edf01de8420bb5f80a4e65ce85d0.png?resizew=149)
![](https://img.xkw.com/dksih/QBM/2016/1/11/1572428039094272/1572428044935168/STEM/24fe3e50d8b24df2a9964b15702ac0a3.png?resizew=160)
![](https://img.xkw.com/dksih/QBM/2016/1/11/1572428039094272/1572428044935168/STEM/8b6b560c47f6410c8fb4bd4c42d21504.png?resizew=56)
您最近一年使用:0次