解题方法
1 . 在矩形
中,
,
,沿对角线
将矩形折成一个大小为
的二面角
,当点B与点D之间的距离为3时![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4961a7dd688b8a12db7d1d3480c6b87f.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4746df85049d1651d3f6c30212a7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c909cd1b6f3fa1ec39eb245e8f5c11c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4961a7dd688b8a12db7d1d3480c6b87f.png)
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2 . 如图,在棱长为
的正方体
中,
在棱
上,且
,以
为底面作一个三棱柱
,使点
分别在平面
上,则这个三棱柱的侧棱长为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae29000bb323cdde854b9b2990702106.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b74bd812e68ff60c201ab36f33305f56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6dec2c74186d6a781e0c38ad794a225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c28abb154f41e1ca9816c9c9c2433ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f6c3f861c5d2eaeb82cee88e70fb69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6125a3317868d056dc1355c2f6f260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d12391c3c228ba27ecb2c23afc39008.png)
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3 . 如图,在长方体
中,已知
,
,
,若对角线
上存在一点
,使得
,则
的最大值是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e0d2c3608c31abe8a71da91dcfd70b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a59f7400fc9ba75e12991a49adcf1f08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/641420d1ceecfa4531725fefeba60009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d62b6e7d719835c9fca341eb1398977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3438f9487fc17c3b67a4706733378568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fd3dbc21137cc3dd200ca4bfe8a01e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2275c7753ff84e491cb18ce86cde3713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74eed0cd9cfbff4e684215492846610e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/59df956c-8433-4a78-b613-5598051014ce.png?resizew=151)
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解题方法
4 . 各棱长均为1且底面为正方形的平行六面体
,满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6660dbf8615c2a0dda71f6d9f395c1a5.png)
______ ;此平行六面体的体积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ecbca919bff5a39a99dd7f867dd61f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6660dbf8615c2a0dda71f6d9f395c1a5.png)
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2024-01-18更新
|
1187次组卷
|
5卷引用:江西省南昌市第二中学2024届高三“九省联考”考后适应性测试数学试题(一)
名校
5 . 已知
、
、
为空间中三个单位向量,且
、
、
与
夹角为
,点P为空间一点,满足
且
,则
最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8337706c550bc095d7a2bd872221a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4876efa91f38d11ce12fed2e1fbf2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d514783895850481ebcb10d8b8354884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8337706c550bc095d7a2bd872221a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231b861d6d1f1d0b9f52b041cb40eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6dfcefb063de42c54340b4378dfee89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b08927eb957325eead728098d7c61587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49eaf009bccbdd52b1a9817a8a3e5e23.png)
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6 . 如图,
、
、
分别是正方体
的棱
、
、
的中点,
是
上的点,
平面
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e776314d1f1670d3a90f2a35125feb67.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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc8e622cc5d651990540fe899e317de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd66687a8c0d2d00ba430b040e9f647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e776314d1f1670d3a90f2a35125feb67.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/18/756b8901-622e-4276-b2d6-37de4c4cec72.png?resizew=153)
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7 . 空间四边形ABCD中,AC与BD是四边形的两条对角线,M,N分别为线段AB,CD上的两点,且满足
,
,若点G在线段MN上,且满足
,若向量
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee477d164d38ff067fc4ce342cf6d380.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a309d00eb066720704dc47b56c664de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f783c98d17cc648dd4f874dfde6d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37c4127bf61fe86f6e24c40e962b575b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538c1a9e933bc1e29d785eeda9cd1abc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a196a46c95682ff64de8978d4775ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee477d164d38ff067fc4ce342cf6d380.png)
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8 . 正方体
的棱长为2,点
平面
,点
是线段
的中点,若
,则当
的面积取得最小值时,三棱锥
外接球的体积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c2f227b3ec9a65debb32a0395ffd62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd246f7c3c275000a94d35438570875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6818a98204f62c1b16699d26ca0c3f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed75ce5131b8067cf22ddd5e4e5e85d.png)
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2023-04-10更新
|
943次组卷
|
4卷引用:湖南省长沙市第一中学2023届高三下学期月考(八)数学试题
湖南省长沙市第一中学2023届高三下学期月考(八)数学试题(已下线)重难点突破01 玩转外接球、内切球、棱切球(二十三大题型)-3重庆市缙云教育联盟2023-2024学年高二上学期12月月度质量检测数学试题新疆维吾尔自治区阿克苏地库车市第二中学2023-2024学年高二上学期期中数学试题
2023高三·全国·专题练习
名校
9 . 如图,已知四棱柱
的底面
为平行四边形,
为棱
的中点,
,
,
与平面
交于点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27d75aafc71e0714f2db78702b953368.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.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/6d4c928019133a5d90cd602b6c0a4cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f885c941617b470ca1fd1c976de509c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27d75aafc71e0714f2db78702b953368.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/31/3fc4bf6e-5242-4a2b-b8be-584444163718.png?resizew=207)
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2023-03-29更新
|
1192次组卷
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19卷引用:第51讲 空间向量的概念
(已下线)第51讲 空间向量的概念(已下线)专题16 空间向量及其应用(练习)-1(已下线)第80练 计算提升训练20广东省佛山市南海区桂华中学2022-2023学年高二上学期第一次阶段测试数学试题福建省厦门第六中学2022-2023学年高二上学期期中质量检测数学试题(已下线)6.1.3 共面向量定理(练习)-2022-2023学年高二数学同步精品课堂(苏教版2019选择性必修第二册)(已下线)6.1.3共面向量定理(1)辽宁省大连市第八中学2022-2023学年高二上学期10月月考数学试题(已下线)第08讲 空间向量基本定理7种常见考法归类-【暑假自学课】2023年新高二数学暑假精品课(人教A版2019选择性必修第一册)(已下线)第03讲 1.2空间向量基本定理(4类热点题型讲练)-【帮课堂】2023-2024学年高二数学同步学与练(人教A版2019选择性必修第一册)(已下线)第01讲 1.1.1空间向量及其线性运算(8类热点题型讲练)-【帮课堂】2023-2024学年高二数学同步学与练(人教A版2019选择性必修第一册)山东省德州市夏津育中万隆中英文高级中学2023-2024学年高二上学期9月月考数学试题广东省广州市一中2023-2024学年高二上学期10月月考数学试题福建省厦门市第三中学2023-2024学年高二上学期期中考试数学试题(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)(已下线)专题01 空间向量及其运算压轴题(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)(已下线)专题01 空间向量与立体几何(3)(已下线)通关练06 空间向量与立体几何章末检测(一)- 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教A版2019选择性必修第一册)(已下线)3.2 空间向量基本定理(五大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)
名校
解题方法
10 . 如图,在多面体ABCDEFG中,四边形ABCD为菱形,
,
,
,且
平面ABCD,四边形BEFG是正方形,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92862a1c50ab8cebd43267fe56988d5d.png)
______ ;异面直线AG与DE所成角的余弦值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f5eec0addba78f2e0cdfb7ecc59a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31d3f5e4389f2edf3955bfe13449b9db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e0bd4b30dc777ac9da80f6baa3eb31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92862a1c50ab8cebd43267fe56988d5d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/29/dc19338d-fd8b-4252-bf30-c5f2a75a1c36.png?resizew=175)
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