解题方法
1 . 如图,已知菱形中,
为边
的中点,将
沿
翻折成
(点
位于平面
上方),连接
和
为
的中点,则在翻折过程中,
与
的夹角为
的轨迹的长度为
您最近一年使用:0次
2023-11-01更新
|
657次组卷
|
3卷引用:第三章 折叠、旋转与展开 专题一 平面图形的翻折、旋转 微点2 翻折、旋转中的基本问题(二)
(已下线)第三章 折叠、旋转与展开 专题一 平面图形的翻折、旋转 微点2 翻折、旋转中的基本问题(二)重庆市名校联盟2023-2024学年度高二上学期期中联考数学试题山东省普高大联考2023-2024学年高二上学期11月期中联合质量测评数学试卷
名校
2 . 空间中两条异面直线所成角为
,直线与平面所成角为
,若
的取值集合为
,
的取值集合为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
__________
.填“
”、“
.
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88dbbaafc83b2435ff00756b9e356b06.png)
您最近一年使用:0次
名校
3 . 如图,在棱长为1的正方体
中,点
在线段
上运动,给出以下命题:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/7/cd1999e3-8268-4859-94ed-97892aedb07c.png?resizew=180)
①异面直线
与
所成的角不为定值; ②平面
平面
;
③二面角
的大小为定值; ④三棱锥
的体积为定值.
其中真命题的序号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/7/cd1999e3-8268-4859-94ed-97892aedb07c.png?resizew=180)
①异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c407eeb34204a1df967b8fbe481cb04d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9be92a3d03fd57eb64d2a01a60d1d9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4294ffdba16ae69fd03b13959d682aba.png)
③二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d286cc307396ae72d71f98503b942f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a80afb14665ad9cb3587c5364980e30.png)
其中真命题的序号为
您最近一年使用:0次
名校
解题方法
4 . 如图,四棱锥
中,底面
是正方形,
平面
.
,
,
分别是
,
的中点,
是棱
上的动点,下列结论中正确的序号是______ .
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534446534e88ab2e1b6145c03a4044f6.png)
②存在点
,使
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21665d21bbfb04410c78345de1fd15ae.png)
③存在点
,使直线
与
所成的角为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
④点
到平面
与平面
的距离和为定值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c83f8945042b9c8fb2fbdac9308d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a93767331e9bac06a564973a9f4fc663.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defa5b53043ae802bb1af7d14374406d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/4/925d58b3-2d77-4b19-a90b-f108c14d07dc.png?resizew=150)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534446534e88ab2e1b6145c03a4044f6.png)
②存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc9d7c0906fb6957aeba1945dd144d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21665d21bbfb04410c78345de1fd15ae.png)
③存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
④点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c9cfa597b444b5c9dbae7a825a695.png)
您最近一年使用:0次
2023-10-17更新
|
312次组卷
|
4卷引用:黄金卷04
(已下线)黄金卷04(已下线)第二章 立体几何中的计算 专题六 空间定值问题 微点1 立体几何中的定值问题综述及定长、定距问题【培优版】北京市第八十中学2023-2024学年高二上学期10月阶段测评数学试题黑龙江省绥化市哈师大青冈实验中学2023-2024学年高二上学期期中数学试题
2023高二·全国·专题练习
5 . 已知等腰直角
的三个顶点在球O的表面上,且
,连接CO并延长交球O的表面于点D,连接DA,DB;若球O的体积为288π,则直线AC,BD所成角的正切值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4184d0d1b8b79f6f268b7c86e7fda1.png)
您最近一年使用:0次
名校
6 . 如图,两条异面直线
所成的角为
,在直线
上分别取点
和点
,使
,且
(
称为异面直线
的公垂线).已知,
,
,则公垂线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51d7fc14599a657b4831a4943360451.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a64340f774b250e6d42d9dc1b127418.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8348c89c6f13053325f4e1c62e29a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b8df14d11c6f036b3b248544b731ae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd72669c08e98a92cdfb9bc167ac56bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b0e4666223cd9ab719a5c36ce32e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7c422a19b68b8b4cd484d22897e3a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51d7fc14599a657b4831a4943360451.png)
您最近一年使用:0次
7 . 如图,异面直线l,m,
,
,
,
,
,
,且
,
,
,
,则异面直线l,m夹角的余弦值为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a30262f17d1e521b48d773da22ebf452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b76843381162198a14f2faf5e2518b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b043bec560739731fb414fdc47da2ba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77bba07568684a409eaa92e02e0a3829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b9d83969b6a8e27e57ab71b34e2b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9c50360563e2a58800af3a9cf7d9652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d0ace693aa9871000cceea36255fe0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a73ff3a6a73403c2a25c0d798bb22a33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7302e4f0bb743b611015615376d893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c559671a60d864715ed73729020f0f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/31/e79e941d-73dd-4db5-b2e9-481fc985eed9.png?resizew=140)
您最近一年使用:0次
名校
8 . 已知圆柱
的底面半径和母线长均为
,
,
分别为圆
、圆
上的点,若
,则异面直线
,
所成的角为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e65ac334119ccd6204402a7aba29a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca1d1079fc3ac3e8d44159329865cb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d85623f82c7d166bc6ae6b403cb5b80.png)
您最近一年使用:0次
9 . 在正方体
中,异面直线
与
所成角的大小是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
2023-09-23更新
|
209次组卷
|
3卷引用:专题训练:空间线线角、线面角、面面角求解精练30题-同步题型分类归纳讲与练(人教A版2019必修第二册)
(已下线)专题训练:空间线线角、线面角、面面角求解精练30题-同步题型分类归纳讲与练(人教A版2019必修第二册)河南市柘城县德盛高级中学2022-2023学年高一下学期5月月考数学试题上海市黄浦区向明中学2023-2024学年高二上学期期中数学试题
名校
解题方法
10 . 如图,矩形中,
,M为BC的中点,将
沿直线
翻折,构成四棱锥
,N为
的中点,则在翻折过程中,
①对于任意一个位置总有平面
;
②存在某个位置,使得;
③存在某个位置,使得;
上面说法中所有错误的序号是
您最近一年使用:0次