名校
1 . 棱长为
的正方体
中,
为棱
的中点,
为正方形
内一个动点(包括边界),且
平面
,则当三棱锥
体积取最大时,其外接球的表面积为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a73120cd0988eb4a63436e7a4b9470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ea211a573491409cb60f9fbe9a65cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923189afc198d153c79059a827f63c87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640aa89f8c302356d2dfe5ccf7c054b0.png)
您最近一年使用:0次
名校
2 . 已知实数
,满足
,则
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a14c388e1e2e5a2ff1ccf6caffbee0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/819060769d52da4b87df58dfd7490fdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab3c5261469d69d9d079221a349be85.png)
您最近一年使用:0次
2024-05-12更新
|
1133次组卷
|
3卷引用:模块五 专题6 全真拔高模拟6(苏教版高二期中研习)
解题方法
3 . 在空间直角坐标系
中,点
,
,点
在
平面内,且
,请写出一个满足条件的点
的坐标:______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a834024400d0730af3e640ca4d5f54b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bfa7d3e1cc538d338fe83f2980f4534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4947241767cf85935f2b06239d8bb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d96461d2b3421aed548b754637ca8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5929048ce5167abc4750589f2e21841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
名校
4 . 如图,正方形
和
的边长都是1,且平面
,点
、
分别在
、
上移动,若
,则线段
长度的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b8a96aa2ac20fce0b875f2e7f03b76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b4e9183e8b5e1aadd77d7df51f5e32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/26/9c669ac9-6fa7-43c5-a5eb-81aebc30aa3f.png?resizew=132)
您最近一年使用:0次
2023-11-27更新
|
199次组卷
|
3卷引用:湖北省武汉市新洲区部分学校2023-2024学年高二上学期期中质量检测数学试题
名校
解题方法
5 . 在正三棱锥
中,
、
分别是
、
的中点,
.若
,则三棱锥
的外接球的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db111a217e7d3313f77a68be312d552b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f73a0ca4e6c794242489066fddb6c5.png)
您最近一年使用:0次
名校
解题方法
6 . 《九章算术》中将底面为直角三角形且侧棱垂直于底面的三棱柱称为堑堵.在堑堵
中,若
,点
是直线
上的动点,则
到直线
的最短距离是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b209ba5f8c9b0f282e1ae67a84a376.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/5/eb281c7f-a13c-47d8-9e33-3174e93431be.png?resizew=151)
您最近一年使用:0次
2023-10-17更新
|
300次组卷
|
3卷引用:北京市顺义区第二中学2023-2024学年高二上学期期中考试数学试题
北京市顺义区第二中学2023-2024学年高二上学期期中考试数学试题北京市顺义牛栏山第一中学2023-2024学年高二上学期10月月考数学试题(已下线)第3章 空间向量及其应用(知识归纳+题型突破)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第一册)
解题方法
7 . 如图,在正方体
中,
为棱
的中点.动点
沿着棱
从点
向点
移动,对于下列四个结论:
(1)存在点
,使得
;(2)存在点
,使得
平面
;(3)
的面积越来越小;(4)四面体
的体积不变. 其中所有正确的结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/27/74502eb1-eadf-4895-9ea6-3c60af11313d.png?resizew=159)
(1)存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656aceec19543470bd58ed3d304d155d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4645450a006f2c20087486d0833afbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1e007fb94902451b22b4e15fe06b08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb9be27ba360bc78bf45fd5a22e4f781.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6738d05f0c7e4f0076fd5c094a4fb51c.png)
您最近一年使用:0次
8 . 若
,
,点P在x轴上,且
,则点P的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/309f095ed75c8f9c7997ca9620fb8001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8009b3d5d8c1013f83d98d54095c5171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a69fe077d2d2c6997d486cc96564cd83.png)
您最近一年使用:0次
2023-09-22更新
|
214次组卷
|
2卷引用:河北省辛集市育才中学2022-2023学年高二上学期期中数学试题
名校
9 . 已知M为
轴上一点,且点M到点
与点
的距离相等,则点M的坐标为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d698d9ecadf5aec75d01ca7ad2b43e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8b9323350e24abff46faadbc8fb85e.png)
您最近一年使用:0次
名校
10 . 在空间直角坐标系中,
轴上与点
和点
距离相等的点的坐标为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b5103a4c35ab0c395c68690a300023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffdb8b12052e9779cc91977a1043022.png)
您最近一年使用:0次
2022-11-15更新
|
334次组卷
|
3卷引用:四川省成都市第七中学2022-2023学年高二上学期期中数学理科试题