名校
解题方法
1 . 正三棱柱
中,
,
是
的中点,点
在
上,且满足
,当直线
与平面
所成的角取最大值时,
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeed487430a5b8a330f2d0c52166521a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/597362da92c667625827a89c1c2e3dd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2024-02-06更新
|
167次组卷
|
4卷引用:湖南省长沙市宁乡市2023-2024学年高二上学期期末考试数学试题
湖南省长沙市宁乡市2023-2024学年高二上学期期末考试数学试题(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)新疆生产建设兵团第三师图木舒克市第一中学2023-2024学年高二下学期数学开学考试数学试卷(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8 空间范围与最值问题综合训练
2 . 在四棱锥
中,
平面
,底面
为矩形,
,点
在线段
上运动,则点
到
距离的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/033d89c701f048bc8860bd10bf56ea79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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名校
解题方法
3 . 如图,正方体
的棱长为1,
、
分别为
与
的中点,则点
到平面
的距离为______ .
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b287d3268c40e01c23f753cc182c4ea2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/95d5c5cd-b954-42c5-a65f-4b3717d98179.png?resizew=174)
您最近一年使用:0次
2023-12-27更新
|
466次组卷
|
5卷引用:湖南省长沙市长沙县省示范学校2023-2024学年高二上学期期末检测数学试题
名校
解题方法
4 . 如图,在三棱锥
中,
,点
在线段
上,且
,则直线
与直线
所成角的余弦值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c65156d88c8787bf697d6c4fd8f21e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0cf3de61b5492989ae2002e19de770a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/2023/12/23/3395591015309312/3396069057093632/STEM/bf147f21eb464843ab74887eb976a6df.png?resizew=177)
您最近一年使用:0次
2023-12-24更新
|
828次组卷
|
4卷引用:湖南省长沙市第一中学2023-2024学年高二上学期第二次阶段性检测(12月)数学试题
名校
解题方法
5 . 如图,在三棱柱
中,
,
,
两两互相垂直,
,
,
分别是侧棱
,
上的点,平面
与平面
所成的(锐)二面角为
,则当
最小时![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5b0594893c40c5578051097ccad61e0.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd8f940b796af67206b3f9dd410a407.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/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1885efcff0b903e314057dd153578600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b5954e01b2d27c4b006a24d311230e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5b0594893c40c5578051097ccad61e0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/19/87d81400-2f42-4bf0-b6ce-0f1f0fb5bc24.png?resizew=128)
您最近一年使用:0次
2023-09-15更新
|
605次组卷
|
4卷引用:湖南省永州市宁远县第二中学2023-2024学年高二上学期9月联考数学试题
解题方法
6 . 在中国古代数学著作《九章算术》中记载了一种称为“曲池”的几何体,该几何体的上下底面平行,且均为扇环形(扇环是指圆环被扇形截得的部分).现有一个如图所示的曲池,
,
,
,
均与曲池的底面垂直,且
,每个底面扇环对应的两个圆的半径分别为1和2,对应的圆心角为90°,则直线
与
所成角的余弦值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.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/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/050b338a-024b-4554-986b-80dcd5b6da15.png?resizew=140)
您最近一年使用:0次
名校
解题方法
7 . 如图,在四棱锥
中,四边形ABCD是矩形,
平面ABCD,
,
,点Q是侧棱PD的中点,点M,N分别在边AB,BC上,当空间四边形PMND的周长最小时,点Q到平面PMN的距离为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83a04565a8ebaa111894b724b0ba266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ace52b64e1e7dfc5211e033255b7d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/17/64ae049c-e0fd-4302-a128-1d16ecfe7659.png?resizew=187)
您最近一年使用:0次
2023-02-16更新
|
592次组卷
|
7卷引用:湖南省长沙市宁乡市第一高级中学2022-2023学年高二上学期12月月考数学试题
解题方法
8 . 在长方体
中,
,点E为棱
上靠近点C的三等分点,点F是长方形
内一动点(含边界),且直线
与平面
所成角的大小相等,则线段
长度的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465f57f7042f1e6e8f1d3c8f916e11d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1df2faa0daa28eedee5a708f53eff3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f348ed8a1690d3ed02aa64459ca50.png)
您最近一年使用:0次
名校
解题方法
9 . 如图,在正方体
中,
为
的中点,则平面
与平面
的夹角余弦值为__________ .
![](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/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/7b7594f4-810f-4f60-8aa7-10fffb731774.png?resizew=170)
您最近一年使用:0次
2023-01-07更新
|
388次组卷
|
3卷引用:湖南省郴州市桂阳县甘甜中学2023-2024学年高二上学期第一次月考数学试题
湖南省郴州市桂阳县甘甜中学2023-2024学年高二上学期第一次月考数学试题天津市耀华中学2022-2023学年高二上学期期末数学试题(已下线)专题05用空间向量研究距离、夹角问题(2个知识点6种题型1个易错点1种高考考法)(1)
解题方法
10 . 已知四棱锥
的底面是边长为2的正方形,
是以AD为斜边的等腰直角三角形,
平面PAD,E是线段PD上的动点(不含端点),若线段AB上存在点F(不含端点)、使得异面直线PA和EF所成的角的余弦值为
,则线段AF长的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a675310c8ba418e5a59beb7317e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/34cf9518-e048-41a0-80af-788db8d3b736.png?resizew=185)
您最近一年使用:0次