2023高三·全国·专题练习
解题方法
1 . 两平面的法向量为
,
,求两平面所成锐二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/376d976069aad337f6ef96dc93f29131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9527044b6948bf34d88d2fec3fd249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2023高三·全国·专题练习
解题方法
2 . 如图,已知多面体
中,
均垂直于平面
,
,
,
.请用空间向量的方法解答下列问题:求直线
与平面
所成的角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192d435f8d96adc954c50c7e4baf784b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aedf65d7d930fdb972d4802c0dea8b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1880586c33da315e49ccb6e2d531c6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53fbc0abdc242efef1ddb98cc4005550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd06851d747f8ccf046bc807b2523e65.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/19/5394ea48-bf01-4c70-9fd6-f82bc35d66fb.png?resizew=147)
您最近一年使用:0次
2021高二·全国·专题练习
3 . 如图所示,在四棱锥
中,底面是直角梯形,
,
⊥底面
,且
,
,建立适当的空间直角坐标系,分别求平面
与平面
的一个法向量.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ca27f9fa673fa014bb34f92355d6714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ffbcd82b98a9ae69aa4ee28bb49a907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef796b46e68fe77b117ff0483d2370c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2a52f691259e1a747d356f631c3d3c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/5/aa36d977-d9b2-42a3-b754-a6cb97a7d1a8.png?resizew=179)
您最近一年使用:0次
2023-09-04更新
|
1112次组卷
|
8卷引用:专题1.9 空间向量的应用-重难点题型精讲-2021-2022学年高二数学举一反三系列(人教A版2019选择性必修第一册)
(已下线)专题1.9 空间向量的应用-重难点题型精讲-2021-2022学年高二数学举一反三系列(人教A版2019选择性必修第一册)(已下线)1.4.1 第1课时 空间向量与平行关系(学案)-2021-2022学年高二数学教材配套学案+课件+练习(人教A版2019选择性必修第一册)(已下线)第七课时 课后 1.4.1.1 空间中点、直线和平面的向量表示(已下线)专题08 直线的方向向量与平面的法向量(重点突围)-【学霸满分】2022-2023学年高二数学下学期重难点专题提优训练(苏教版2019选择性必修第二册)(已下线)2.4.1 空间直线的方向向量和平面法向量(同步练习)-【素养提升—课时练】2022-2023学年高二数学湘教版选择性必修第二册检测(基础篇)北师大版(2019) 选修第一册 数学奇书 第三章 空间向量与立体几何 §4 向量在立体几何中的应用 4.1 直线的方向向量与平面的法向量海南省川绵中学2023-2024学年高二上学期10月第一次月考数学试题(已下线)6.3 空间向量的应用 (2)
2023高三·全国·专题练习
4 . 如图,在正方体
中,
为
的中点,点
在棱
上.若
,证明:
与平面
不垂直
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/370cfaff07758cdfb11aa0dfbacdc041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6e90b3c6db0b9696640fb1940c4a8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/cca03186-6d46-4af8-a1d7-a4d4ee5376a4.png?resizew=164)
您最近一年使用:0次
5 . 如图,圆柱上,下底面圆的圆心分别为
,
,该圆柱的轴截面为正方形,三棱柱
的三条侧棱均为圆柱的母线,且
,点
在轴
上运动.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/16320c31-ce99-46e9-9397-f9a2951ace6b.png?resizew=131)
(1)证明:不论
在何处,总有
;
(2)当
为
的中点时,求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f67c897b31dc0889695594e59d88038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/16320c31-ce99-46e9-9397-f9a2951ace6b.png?resizew=131)
(1)证明:不论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db7ef46a372d4c6481a7bc245c5d0aa2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a571745474520e3db9cb68c76585f63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fbde8c306b6cfcb7c68ccf01e00b49.png)
您最近一年使用:0次
2022-12-08更新
|
896次组卷
|
4卷引用:山东省泰安市2022-2023学年高二上学期期中考试数学试题
山东省泰安市2022-2023学年高二上学期期中考试数学试题(已下线)3.4.3用向量方法研究立体几何中的度量关系(第1课时 夹角问题)(同步练习)-2023-2024学年高二数学同步精品课堂(北师大版2019选择性必修第一册)(已下线)江西省上饶市2023届高三第一次高考模拟考试数学(理)试题变式题16-20江苏省南通市如皋市2024届高三下学期2月诊断测试数学试题
2022·全国·模拟预测
名校
6 . 如图1,在平面四边形
中,已知
,
,
,
,
,
于点
.将
沿
折起使得
平面
,如图2,设
(
).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/8df9f93a-285a-44d5-81bf-e1c7e9596a20.png?resizew=289)
(1)若
,求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
平面
;
(2)若直线
与平面
所成角的正弦值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4864c21e9664fa9111ede6425b09563a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da48240e7fc3248f773ac1500c15ec14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37002ada5d194d4d062fa3285d7d9824.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71f070c1aa967a945113735322fae18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9295bfd1b7085a86d874617d5f87f099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6be8ab51eec310bfd7d6c01cc311c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a675310c8ba418e5a59beb7317e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/94bd29473c0065517b9427d0147d1c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3ede869e508a8c8bda34a16782f863.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/8df9f93a-285a-44d5-81bf-e1c7e9596a20.png?resizew=289)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441809d6ce2df21a85b390cdce9b1112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb304d905125170bebfada27e7ed8960.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
解题方法
7 . 在几何体
中,底面
是边长为6的正方形,
,
,
,
均为正三角形,且它们所在的平面都与平面
垂直.
是线段
上的动点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/12e03020-2ad4-4276-97df-0cb1f1bf54cf.png?resizew=155)
(1)若
,求三棱锥
的体积;
(2)若平面
平面
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17d4a6cf11cda87b3dfafaecdec683f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f14b86b8bf99386fc939c9c12b1355ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a0c85deb80d8e63bc60127e803f7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7ab8de2231d3bfbd289dcdf6d512667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6801e866d3f9f26886e271708a73a6b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e6648c9e56d68506017df7424be99c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/12e03020-2ad4-4276-97df-0cb1f1bf54cf.png?resizew=155)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1c3ea872a20fdc1843cb5ffce8a554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1234a7bbfe925eeea7f17d30bfab88b3.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbfb8a8a4d0731f5b237d5c8e169725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24fac8b38a9cf7602391f6d6ca933bd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2022-12-04更新
|
474次组卷
|
4卷引用:河南金太阳联考创新联盟2022-2023学年高二上学期11月第三次联考数学试题
名校
解题方法
8 . 如图所示,四棱锥
的底面
是矩形,
底面
,
,
,
,
.
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45fbffb9e2c7fa7c5006cde8da0cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1baa1c07becd03537beeb09a31745cf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638d9cccb679214718224c3088ed4a10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b279505327550bbb8077940fd44f01c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd358d23ced19c951ba670188ceaf15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d008e2db7380fa8b41fb604e41ef053f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4d781525777c7b5284dffc70b2a28a.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa3254460ecbacecb3e57c5dce227f4.png)
您最近一年使用:0次
2022-12-01更新
|
5897次组卷
|
19卷引用:重庆市第三十七中学校2022-2023学年高二上学期期末数学试题
重庆市第三十七中学校2022-2023学年高二上学期期末数学试题山西省晋城市泽州县晋城一中教育集团南岭爱物学校2022-2023学年高二上学期1月期末调研考试数学试题陕西省西安市鄠邑区2022-2023学年高二上学期期末理科数学试题云南省曲靖市麒麟区帅亚高级中学2022-2023学年高二下学期2月月考数学试题广东省广州市白云中学2022-2023学年高二下学期期中数学试题黑龙江省鸡西市鸡西实验中学2022-2023学年高二下学期期中数学试题(已下线)第12讲 第一章 空间向量与立体几何 章节验收测评卷(基础卷)-【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)河南省新乡市铁路高级中学2023-2024学年高二上学期第一次月考数学试题广东省东莞市嘉荣外国语学校2023-2024学年高二上学期第一次月考数学试题广东省广州市花都一中2023-2024学年高二上学期10月月考数学试题四川省南充市第一中学三校区2023-2024学年高二上学期期中联考数学试题新疆维吾尔自治区塔城地区第一高级中学2023-2024学年高二上学期期中数学试题(已下线)期末真题必刷常考60题(32个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)海南省琼海市嘉积中学2023届高三上学期第三次月考(期中)数学试题河北省邯郸市大名县第一中学2023届高三下学期2月月考数学试题宁夏银川一中、昆明一中2023届高三联合二模考试数学(理)试题陕西省西安交通大学附属中学雁塔校区2023届高三高考前最后一卷理科数学试题广东省普通高中2024届高三合格性考试模拟冲刺数学试题(三)黑龙江省哈尔滨市第七十三中学校2024届高三下学期第五次模拟考试数学试卷
名校
解题方法
9 . 如图,平行六面体
的底面是菱形,且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/0925bfe7-8c36-4788-b2b6-76b2b450f7b6.png?resizew=180)
(1)求
的长;
(2)求异面直线
与
所成的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a6ee51af9b52152488b1772fa190fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e62266d9a9a49b89902837eb1152e536.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/0925bfe7-8c36-4788-b2b6-76b2b450f7b6.png?resizew=180)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabe764f05300ac83c7d16b685d27af4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2eb89294b31ffdd2680b4361e8994d7.png)
您最近一年使用:0次
2022-11-25更新
|
1376次组卷
|
6卷引用:河南省洛阳市2022-2023学年高二上学期期中数学理科试题
名校
10 . 在图1中,四边形
为梯形,
,
,
,
,过点A作
,交
于
.现沿
将
折起,使得
,得到如图2所示的四棱锥
,在图2中解答下列两问:
的体积;
(2)若F在侧棱
上,
,求证:二面角
为直二面角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6610676353016a9f7235d306b731c1e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df793f5dac174bc71bd1e82bbf5732b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e0b7d845cbceccd3e76ca461fcc534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5b4ea605cf0b98e428d071f6be6762.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4999d4fbcbe15f78c29d518f25d317c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99be23ddbd80e2c75649e3d1f8594130.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99be23ddbd80e2c75649e3d1f8594130.png)
(2)若F在侧棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386e945cb8ffa5288ba68b0714ea9e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade6931be0db4f7a771bb764c88c80d9.png)
您最近一年使用:0次
2022-11-24更新
|
915次组卷
|
5卷引用:浙江省宁波市2022-2023学年高二下学期期末数学试题(A)