23-24高三上·浙江绍兴·期末
解题方法
1 . 如图,三棱柱
是所有棱长均为2的直三棱柱,
分别为棱
和棱
的中点.
面
;
(2)求二面角
的余弦值大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a51949f48ee8cf746851ba779b078e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f96e23f7b5d3b1dcac47c19fd6da8860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03cdf382d6962a5fee6064dcae93e37f.png)
您最近一年使用:0次
名校
解题方法
2 . 如图,在四棱锥
中,
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/23/364e3cab-ff16-4f3b-9f1b-485d2d03ce87.png?resizew=141)
(1)求证:平面
平面
;
(2)求平面
与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a30b3258431eaabc2242e5f5e303661c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39776e9158fb382a3de6eb1572bcf02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b0c6766bd801fa114221d0ab0bfa61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d52799633a6a7b7c5d188e3486f1ee.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/23/364e3cab-ff16-4f3b-9f1b-485d2d03ce87.png?resizew=141)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04c222223dae9ef27d4c132534d9848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
2023-12-24更新
|
445次组卷
|
2卷引用:上海市普陀区晋元高级中学2024届高三上学期秋考模拟数学试题
3 . 图1所示的是等腰梯形
,
,
,
,
于
点,现将
沿直线
折起到
的位置,形成一个四棱锥
,如图2所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/bd51cb1e-ef74-4385-8eef-f82571094975.png?resizew=285)
(1)若
,求证:
平面
;
(2)若直线
与平面
所成的角为
,求二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d31600cba2d5256c7e78b6122d6755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef4e2976b194877ec06f84b04670cff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b96fac11d72f72c805dbddb8da72d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefe4a3e7a7fa195ed6a6712447639b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc46fd80298f6bb479789a063ca82ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9e4694629f7c01980a0e13c89bb6871.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/bd51cb1e-ef74-4385-8eef-f82571094975.png?resizew=285)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ced8225ff27c8e3e1897b8629312d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db807b09cc550f476b3f8fa0c6a14425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e1e4ea140260a790885868bc7a94f2.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e1e4ea140260a790885868bc7a94f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1f04ff8d19d4a3e0ffe4504b961b49.png)
您最近一年使用:0次
解题方法
4 . 如图,某多面体的底面
为正方形,
∥
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/559f1a86-b558-4c86-ba5c-d0aea3abfa49.png?resizew=163)
(1)求四棱锥
的体积;
(2)求二面角
的平面角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02450b3417002395524dea35899a97ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9e5f1cfea3643c30c21732073a11ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca7f2c76e2d7aafeafbba1f7d740850e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7809a0611650cea73b90fc526018935.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/559f1a86-b558-4c86-ba5c-d0aea3abfa49.png?resizew=163)
(1)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381aa5f96390e393dca1f22490066169.png)
您最近一年使用:0次
2014·上海黄浦·二模
5 . 如图,在直三棱柱
中,
,
,
,
是棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/5d9561c5-c718-4358-8554-610a1aeca2c6.png?resizew=136)
(1)求证:
平面
;
(2)求平面
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed8f7d3d7043d4b1eb98fc5c4e2fcd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209acf15985d1ea1ad86fc4a37e38c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/5d9561c5-c718-4358-8554-610a1aeca2c6.png?resizew=136)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6d06903252260d31d1a9cdeb735b089.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dfaad4c4467e27421876d8f2a4371d2.png)
您最近一年使用:0次
2023-11-27更新
|
296次组卷
|
8卷引用:2014届上海市黄浦区高考模拟(二模)理科数学试卷
(已下线)2014届上海市黄浦区高考模拟(二模)理科数学试卷2016届上海市行知中学高三第一次月考数学试卷2015届江苏省南通第一中学高三上学期期中考试理科数学试卷河南省濮阳市2017-2018学年高二上学期期末考试(A卷)数学(理)试题陕西省咸阳市高新一中2023-2024学年高二上学期期中考试数学试卷黑龙江省密山市牡丹江管理局高级中学2021-2022学年高二上学期期末数学试题(已下线)模块五 专题3 期末全真模拟(能力卷1)高二期末(已下线)每日一题 第5题 面面夹角 运用向量(高二)
名校
解题方法
6 . 如图,在三棱柱
中,底面
是以
为斜边的等腰直角三角形,侧面
为菱形,点
在底面上的投影为
的中点
,且
.
(1)求证:
;
(2)求点
到侧面
的距离;
(3)在线段
上是否存在点
,使得直线
与侧面
所成角的余弦值为
?若存在,请求出
的长;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/19/72c4c98d-ee41-4e09-9044-82670098fcd2.png?resizew=179)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a382ccd078374f1efebb26a43599e596.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
(3)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e27511b095e8e96719af8bc9a7412ac1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce1b066f8869d0ff4513f7a99745125.png)
您最近一年使用:0次
2023-10-18更新
|
949次组卷
|
9卷引用:上海市虹口区2023届高考一模数学试题
上海市虹口区2023届高考一模数学试题上海市行知中学2023-2024学年高二上学期10月月考数学试题(已下线)专题08 立体几何解答题常考全归类(精讲精练)-1天津市梧桐中学2022-2023学年高三上学期期末数学试题(已下线)专题8-2 立体几何中的角和距离问题(含探索性问题)-3(已下线)6.3.4空间距离的计算(3)(已下线)湖南省长沙市长郡中学2024届高三上学期月考(二)数学试题变式题19-22(已下线)考点13 立体几何中的探究问题 2024届高考数学考点总动员【练】(已下线)专题06 用空间向量研究距离、夹角问题10种常见考法归类 - 【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)
名校
解题方法
7 . 如图所示三棱锥P-ABC,底面为等边三角形ABC,O为AC边中点,且
底面ABC,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94dd33adfe9adf9641dcf93f728f2c24.png)
(1)求三棱锥P-ABC的体积;
(2)若M为BC中点,求PM与平面PAC所成角大小(结果用反三角数值表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94dd33adfe9adf9641dcf93f728f2c24.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/2/59923a3e-9147-4c4f-871d-3d7d765a89c9.png?resizew=150)
(1)求三棱锥P-ABC的体积;
(2)若M为BC中点,求PM与平面PAC所成角大小(结果用反三角数值表示).
您最近一年使用:0次
2023-10-14更新
|
298次组卷
|
9卷引用:2022年上海高考练习数学试题
2022年上海高考练习数学试题(已下线)上海市华东师范大学第二附属中学2023届高三上学期开学考试数学试题上海市行知中学2023届高三上学期10月月考数学试题上海市松江区第四中学2022-2023学年高二上学期期中数学试题(已下线)重难点01 空间角度和距离五种解题方法-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)上海市洋泾中学2024届高三上学期10月月考数学试题上海市行知中学2024届高三上学期开学考数学试题(已下线)第19讲 立体几何初步-3(已下线)专题10立体几何初步必考题型分类训练-1
名校
解题方法
8 . 如图,在正方体
中,点
、
分别是
、
的中点.
是菱形;
(2)求异面直线
与
所成角的大小.
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2638646f25490fc9b3c7fd05a202128e.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
2023-09-11更新
|
262次组卷
|
7卷引用:上海市普陀区2017届高三下学期质量调研(二模)数学试题
上海市普陀区2017届高三下学期质量调研(二模)数学试题2017届上海市普陀区高考二模数学试题(已下线)复习题(三)上海市嘉定区第一中学2023-2024学年高二上学期10月月考数学试题(已下线)专题03空间向量及其应用--高二期末考点大串讲(沪教版2020选修)沪教版(2020) 必修第三册 新课改一课一练 第10章 单元复习沪教版(2020) 选修第一册 单元训练 第3章 单元测试
名校
解题方法
9 . 如图,
平面
,四边形
为直角梯形,
.
(1)求异面直线
与
所成角的大小;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.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/5c75620da76cf649947b360ff881fb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/4/8c356506-e980-4d64-b5c1-04521062c14e.png?resizew=139)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1069d514c3c32aeabd274475ee209ed6.png)
您最近一年使用:0次
2023-06-01更新
|
749次组卷
|
3卷引用:上海交通大学附属中学2023届高三三模数学试题
名校
解题方法
10 . 已知
和
所在的平面互相垂直,
,
,
,
,
是线段
的中点,
.
(1)求证:
;
(2)设
,在线段
上是否存在点
(异于点
),使得二面角
的大小为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ae752bc1732e638f35cc08e347a5b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.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/d783fe7f3ce673d5d21281174e7a7968.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4151e948feebdf7b91fbe739feafa9bc.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0393ce62b24aa5f9b740d4cc6743b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b820c84570da9c38d0a81c22788b76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
您最近一年使用:0次
2023-05-31更新
|
611次组卷
|
3卷引用:上海市延安中学2023届高三三模数学试题