名校
1 . 如图所示,
是棱长为
的正方体,
、
分别是下底面的棱
、
的中点,
是上底面的棱
上的一点,
,过
、
、
的平面交上底面于
,
在
上,则异面直线
与
所成角的余弦值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.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/02c9cf5db73f5d6daa73bc45a1921bd2.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df20d7a3912c7365dfbaab1bcf9c9944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab3d7e6077fe7ec725a5637c8bdfee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://img.xkw.com/dksih/QBM/2022/5/25/2987216339501056/2988467920576512/STEM/28aa20f8-5573-46d4-ad88-745af8396cb1.png?resizew=180)
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11卷引用:云南省楚雄天人中学2022-2023学年高二上学期9月学习效果监测数学试题
云南省楚雄天人中学2022-2023学年高二上学期9月学习效果监测数学试题安徽省合肥一六八中学2021-2022学年高二上学期第一次月考数学试题重庆市第八中学校2022届高三下学期调研检测(十四)数学试题(已下线)专题35:空间直线、平面的平行-2023届高考数学一轮复习精讲精练(新高考专用)(已下线)专题09 空间向量与立体几何(已下线)突破1.4 空间向量的应用(重难点突破)(已下线)第06讲 向量法求空间角(含探索性问题) (讲)-1(已下线)7.5 空间向量求空间角(精练)(已下线)专题25 异面直线所成角-3(已下线)第4讲 空间向量的应用 (2)(已下线)第07讲 空间向量的应用 (1)
21-22高一·全国·课后作业
2 . 设a,b是不同的直线,
,
是两个不同的平面,给出下列结论:
①若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d5240f8aed282883ca120c6e80d200.png)
,b∥
,
∥
,则a∥b;
②若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a60be170a52db82cf37b30db0cde26.png)
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d5240f8aed282883ca120c6e80d200.png)
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a50857b31d4d38651f370d2d2e910df.png)
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d5240f8aed282883ca120c6e80d200.png)
;
③若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a60be170a52db82cf37b30db0cde26.png)
,A∈
,过点A作直线l∥
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e0019e49f673a3b11a4259ce3c9a87.png)
;
④平行于同一个平面的两个平面平行.
其中所有正确结论的序号是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d5240f8aed282883ca120c6e80d200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a60be170a52db82cf37b30db0cde26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d5240f8aed282883ca120c6e80d200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a50857b31d4d38651f370d2d2e910df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d5240f8aed282883ca120c6e80d200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a60be170a52db82cf37b30db0cde26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e0019e49f673a3b11a4259ce3c9a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
④平行于同一个平面的两个平面平行.
其中所有正确结论的序号是
您最近一年使用:0次
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6卷引用:四川省峨眉文旅综合高中学校2022-2023学年高二上学期第一次月考数学试题
四川省峨眉文旅综合高中学校2022-2023学年高二上学期第一次月考数学试题(已下线)8.5空间中的平行关系单元复习检测题 【师说智慧课堂】新教材人教A(2019)必修(第二册)(已下线)期末押题预测卷03-2021-2022学年高一数学下学期期末必考题型归纳及过关测试(人教A版2019)(已下线)8.5.3 平面与平面平行(2)-2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)(已下线)专题强化三 直线、平面的平行和垂直问题-2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)(已下线)第七章 立体几何与空间向量 第三节?第二课时直线,平面平行的判定与性质(B素养提升卷)
名校
3 . 如图,已知正方体
的棱长为4,
,
分别是棱
和
的中点,
是侧面
内的动点,且
平面
,当
的外接圆面积最小时,三棱锥
的外接球的表面积为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a53f3642feb20eee0af47001b5ffe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59375dfae3a8ec264204cfe78caac97d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6b87654a4b5604ea8ca50a52adb442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5758391203b4105876f9b3f62dd054.png)
![](https://img.xkw.com/dksih/QBM/2022/3/29/2946459840069632/2948598897213440/STEM/dc58b473-b3fb-4879-9eb9-b04cc32d5c24.png?resizew=167)
您最近一年使用:0次
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5卷引用:重庆市石柱中学校2021-2022学年高二上学期第一次月考数学试题
名校
解题方法
4 . 如图,正方体
的棱长为1,
,
分别是棱
,
的中点,过直线
的平面分别与棱
,
交于点
,
,设
,给出下列四个结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/922c5d63-0eb3-4ee6-9681-2e41157d8945.png?resizew=165)
①四边形
一定为菱形;
②若四边形
的面积为
,
,则
有最大值;
③若四棱锥
的体积为
,
,则
为单调函数;
④设
与
交于点
,连接
,在线段
上取点
,在线段
上取点
,则
的最小值为
.
其中所有正确结论的序号是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.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/6024fd4532f5f981deac4582c799a6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ecac2dad4cffdd971fd23deacff3fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6655cc150ddc9deba2254780984d0024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b25f3ea33cc08b1e2a0d9c3a9dccaf.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/91f2a9b923a355694ea487f6c5669a04.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/922c5d63-0eb3-4ee6-9681-2e41157d8945.png?resizew=165)
①四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65e92eac740953aa383be636ea90fd47.png)
②若四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65e92eac740953aa383be636ea90fd47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f56fa5f9c9f324859bde42ee3ca620db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c7b69e93488fcd2a195cb9793e94fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③若四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b941daa059b04aab552429ae22a1661d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/201cc22f3d6ba9fa2b9105086939692f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31dcf3dd29fb1df05825fb4db8e53aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
④设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e0f0ccc8492a0ccf1eee24867060643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffb952f86442845da723fd291564484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b435d7fc33860ae191f9111d880b40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b435d7fc33860ae191f9111d880b40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/284750727aa2c32b2477d126daefb329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a18799306b1ed4d93066f569a14513d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0998c9ee1ed743a010cd977ff3e5549.png)
其中所有正确结论的序号是
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5卷引用:河南省洛阳市洛宁县第一高级中学2022-2023学年高二上学期9月月考数学试题
河南省洛阳市洛宁县第一高级中学2022-2023学年高二上学期9月月考数学试题北京市中国人民大学附属中学2022届高三2月自主复习检测练习(开学测)数学试题(已下线)思想03 数形结合思想(练)--第三篇 思想方法篇-《2022年高考数学二轮复习讲练测(新高考·全国卷)》(已下线)第24节 直线、平面平行的判定与性质-备战2023年高考数学一轮复习考点帮(全国通用)(已下线)第二章 立体几何中的计算 专题七 空间范围与最值问题 微点2 线段、距离、周长的范围与最值问题(二)【基础版】
名校
解题方法
5 . 如图,已知棱长为1的正方体ABCD-A1B1C1D1中,E,F,M分别是线段AB,AD,AA1的中点,又P,Q分别在线段A1B1,A1D1上,且A1P=A1Q=x(0<x<1).
![](https://img.xkw.com/dksih/QBM/2022/1/19/2897856935051264/2924777499377664/STEM/7256a2f4507542739763224e27938a8d.png?resizew=155)
设平面MEF∩平面MPQ=l,现有下列结论:①l//平面ABCD;②l⊥AC;③直线l与平面BCC1B1不垂直;④当x变化时,l不是定直线.其中成立的结论是________ .(写出所有成立结论的序号)
![](https://img.xkw.com/dksih/QBM/2022/1/19/2897856935051264/2924777499377664/STEM/7256a2f4507542739763224e27938a8d.png?resizew=155)
设平面MEF∩平面MPQ=l,现有下列结论:①l//平面ABCD;②l⊥AC;③直线l与平面BCC1B1不垂直;④当x变化时,l不是定直线.其中成立的结论是
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7卷引用:安徽省合肥市肥东县高级中学2019-2020学年高三下学期3月线上调研考试数学(文)试题
安徽省合肥市肥东县高级中学2019-2020学年高三下学期3月线上调研考试数学(文)试题河南省信阳高级中学2022-2023学年高二上学期10月巩固测试数学试题福建省三明市第一中学2018届高三上学期期中考试数学(文)试题(已下线)第一章+空间几何体(能力提升)-2020-2021学年高一数学单元测试定心卷(人教版必修2)(已下线)专题三 立体几何检测-2022年高考数学二轮复习讲练测(新教材·新高考地区专用)(已下线)类型二 空间点、线、面的位置关系-【题型突破】备战2022年高考数学二轮基础题型+重难题型突破(新高考专用)(已下线)专题30 直线、平面平行的判定与性质-3
名校
解题方法
6 . 设平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
,直线
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576501d681ad21ea2f8f1f99b57e468a.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62fee0549048720b36665007aee2f1cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/181ed7b728cf390d97fe435b31f5c46d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576501d681ad21ea2f8f1f99b57e468a.png)
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|
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3卷引用:陕西省西安高级中学2021-2022学年高一上学期第二次月考数学试题
陕西省西安高级中学2021-2022学年高一上学期第二次月考数学试题陕西省咸阳市武功县普集高级中学2023-2024学年高一下学期第3次月考数学试题(已下线)13.2.4平面与平面位置关系(1)平面与平面平行的判定与性质(备作业)-【上好课】2021-2022学年高一数学同步备课系列(苏教版2019必修第二册)
名校
解题方法
7 . 如图,在正方体
中,E是线段
上的动点,下列四个结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/4ead815c-884c-4204-ae02-ea6ae784984b.png?resizew=164)
①
面
;
②
面
;
③二面角
的平面角为
;
④三棱锥
的体积不变.
其中正确结论的序号为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/4ead815c-884c-4204-ae02-ea6ae784984b.png?resizew=164)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d850305485a6d3ee30fe313dc8bb736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/565133e91e3ace2b2187cfc6f1db5be6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
③二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc741de0ca651a0f3ef1974c3bb52bb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
④三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96a91c2d02c8116e99111c488056553d.png)
其中正确结论的序号为
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2卷引用:四川省眉山第一中学2022-2023学年高二上学期10月月考数学(文科)试题
名校
解题方法
8 . 在棱长为1的正方体
中,过点A的平面
分别与棱
,
,
交于点E,F,G,记四边形AEFG在平面
上的正投影的面积为
,四边形AEFG在平面
上的正投影的面积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/575dddca-67ce-4b6d-813f-c498aba50680.png?resizew=146)
给出下面四个结论:
①四边形AEFG是平行四边形;
②
的最大值为2;
③
的最大值为
;
④四边形AEFG可以是菱形,且菱形面积的最大值为
.
则其中所有正确结论的序号是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/575dddca-67ce-4b6d-813f-c498aba50680.png?resizew=146)
给出下面四个结论:
①四边形AEFG是平行四边形;
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c21cbb1c2bcbcb8391ac5a879f2ae0.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50524aaa1503092bd18419de6d851541.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
④四边形AEFG可以是菱形,且菱形面积的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839c7616cd0d90265f4b2c9c021254fe.png)
则其中所有正确结论的序号是
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4卷引用:北京市昌平区第二中学2022-2023学年高二上学期10月月考数学试题
北京市昌平区第二中学2022-2023学年高二上学期10月月考数学试题北京西城区2022届高三上学期期末数学试题(已下线)第02讲 空间向量的坐标表示-【帮课堂】2021-2022学年高二数学同步精品讲义(苏教版2019选择性必修第二册)(已下线)专题02 空间向量基本定理及其坐标表示压轴题(5类题型+过关检测)-【常考压轴题】2023-2024学年高二数学上学期压轴题攻略(人教A版2019选择性必修第一册)
名校
9 . 如图,在长方体
中,
点
是
(靠近点
)的一个三等分点,点
是
的中点,
为直线
与平面
的交点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88b792b59a0739d8b50ea0ce659917a9.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c937f9eddd54ef917d9642aa45b8ab.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a7bcc1efb8a2ff57d64b6d057da463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a681d311a864d38cf306a0c137cbcca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88b792b59a0739d8b50ea0ce659917a9.png)
![](https://img.xkw.com/dksih/QBM/2022/1/6/2876491667505152/2888853679841280/STEM/401d7d08273b4c4ea87a9ed6fa10c1b1.png?resizew=165)
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2卷引用:湖南省永州市第一中学2021-2022学年高二上学期第二次月考数学试题
10 . 已知表面积为24的正方体
,中,
,
,
分别是线段
,
,
的中点,点
在平面
内,若
//平面
,则线段
的长度的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.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/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbafedc202bd0d86c4dfdece9f8f4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c798204bbe306b3efd5bc9eae594c171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212ef48bb043b58681c8802c79622050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c798204bbe306b3efd5bc9eae594c171.png)
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