1 . 如图,已知四棱锥
中,
平
,
,
,
为
中点,
在
上,
,
,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/2021/6/9/2739313790140416/2743799293411328/STEM/9e471ed7-0d83-4073-af1c-5bffe10e8fd1.png?resizew=235)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](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/f5e02c3afa2d3d5a162029b084a35d97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64de1045b3f333430752f403fe36a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47a260f59df7390905e9a16834b3b048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd59d4bdd4a59554257cce9e9e30f1c.png)
![](https://img.xkw.com/dksih/QBM/2021/6/9/2739313790140416/2743799293411328/STEM/9e471ed7-0d83-4073-af1c-5bffe10e8fd1.png?resizew=235)
A.![]() ![]() |
B.![]() ![]() |
C.四面体![]() ![]() |
D.平面![]() ![]() |
您最近一年使用:0次
2021-06-15更新
|
2113次组卷
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12卷引用:第15课时 课中 平面与平面垂直的性质
(已下线)第15课时 课中 平面与平面垂直的性质4.4平面与平面的位置关系河北省巨鹿中学2020-2021学年高一下学期第三次月考数学试题辽宁省“决胜新高考·名校交流“2021届高三3月联考数学试题(已下线)押新高考第12题 立体几何-备战2021年高考数学临考题号押题(新高考专用)八省名校2021届高三新高考冲刺大联考数学试题湖北省武汉一中2021届高三下学期二模数学试题(已下线)第12题 多选题中的立体几何综合问题-2021年高考数学真题逐题揭秘与以例及类(新高考全国Ⅰ卷)(已下线)专题04 立体几何-备战2022年高考数学母题题源解密(新高考版)(已下线)专题10 导数及其应用-备战2022年高考数学母题题源解密(新高考版)(已下线)查补易混易错点05 空间向量与立体几何-【查漏补缺】2022年高考数学三轮冲刺过关(新高考专用)(已下线)第24节 直线、平面平行的判定与性质-备战2023年高考数学一轮复习考点帮(全国通用)
20-21高一·全国·课后作业
解题方法
2 . 在正方体
中,
与平面
所成角的正弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
20-21高一·全国·课后作业
名校
解题方法
3 . 如图,二面角α-l-β的大小是60°,线段AB⊂α,B∈l,AB与l所成的角为30°,则AB与平面β所成的角的正弦值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/1cef5e44-48f3-4cf9-9453-0f91f6787ef3.png?resizew=174)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/1cef5e44-48f3-4cf9-9453-0f91f6787ef3.png?resizew=174)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-06-12更新
|
896次组卷
|
6卷引用:8.6.3 第1课时 平面与平面垂直(分层练习)-2020-2021学年高一数学新教材配套练习(人教A版2019必修第二册)
(已下线)8.6.3 第1课时 平面与平面垂直(分层练习)-2020-2021学年高一数学新教材配套练习(人教A版2019必修第二册)(已下线)13.2.4平面与平面位置关系(2)二面角(备作业)-【上好课】2021-2022学年高一数学同步备课系列(苏教版2019必修第二册)甘肃省金昌市永昌县第一高级中学2021-2022学年高一下学期期末数学试题山东省日照市2022-2023学年高二上学期期中校际联考数学试题(已下线)2023年高考全国乙卷数学(理)真题变式题6-10山东省日照市国开中学2023-2024学年高二上学期第一次月考数学试题
名校
4 . 如图,边长为
的正方形
所在的平面与平面
垂直,
与
的交点为
,
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/5ce01b79-51e2-48a3-9188-0237308ddd76.png?resizew=158)
(1)求证:
平面
;
(2)求直线
与平面
所成角正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b9d54cbbf601f4583659771eb534997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/5ce01b79-51e2-48a3-9188-0237308ddd76.png?resizew=158)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0edb1508fc95765f3bb316bcb5252d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8257b6bd25104e07b9ad935c0a3aac4.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
您最近一年使用:0次
2021-06-12更新
|
1508次组卷
|
5卷引用:8.6.3 第2课时 平面与平面垂直(分层练习)-2020-2021学年高一数学新教材配套练习(人教A版2019必修第二册)
(已下线)8.6.3 第2课时 平面与平面垂直(分层练习)-2020-2021学年高一数学新教材配套练习(人教A版2019必修第二册)2014-2015学年甘肃省天水市第一中学高一上学期期末考试数学试卷湖南省衡阳市第八中学2018-2019学年高一上学期12月九科联赛数学试题甘肃省金昌市永昌县第一高级中学2020-2021学年高一下学期期末数学试题黑龙江省大庆中学2020-2021学年高一下学期期末数学试题
20-21高一·全国·课后作业
5 . 如图,
是菱形
所在平面外的一点,且
,
的长为
,侧面
为正三角形,其所在平面垂直于底面
,
与平面
所成的角为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b657cfa91b6394e4b00fa385a2c0149.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e0b64d25ddd18454f88e40c45d7d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b657cfa91b6394e4b00fa385a2c0149.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/1bdf14a2-67b7-4fd0-a2d9-e548e561f07d.png?resizew=213)
您最近一年使用:0次
21-22高二上·浙江·期末
6 . 如图,在四棱锥
中,底面
为梯形,
、
分别是
、
的中点,
,
,
,
平面
.
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715478340091904/2715709847470080/STEM/010dd4b9fc2a4158b3c43ff86f65847a.png?resizew=225)
(1)求证:
平面
;
(2)求
与平面
所成的角的余弦值.
![](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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e951784e6a8efae93bb59ff37e7c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b547d886c528fa2c63016c217b8fb51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc6f007dbf1c1a36eb031e520608403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715478340091904/2715709847470080/STEM/010dd4b9fc2a4158b3c43ff86f65847a.png?resizew=225)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826bf6fa3706921b77ad0eb4fcc206bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a74bf82d6c7d1568a33e1c135faa5b54.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
您最近一年使用:0次
20-21高一·全国·课后作业
解题方法
7 . 如图,在长方体
中,底面
是边长为2的正方形,
,
是
与
的交点.
![](https://img.xkw.com/dksih/QBM/2021/4/17/2701600833216512/2703433738846208/STEM/b48f85a3-301a-4111-9e6a-925f520a99a8.png?resizew=243)
(1)作出面
与面
的交线
,并写出作法;
(2)若以
为坐标原点,分别以
,
,
所在的直线为
轴、
轴、
轴,建立空间直角坐标系,试写出
,
两点的坐标,并求
的长;
(3)求
与面
所成角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad1a56baf43ffdf67bc8460856e31fec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://img.xkw.com/dksih/QBM/2021/4/17/2701600833216512/2703433738846208/STEM/b48f85a3-301a-4111-9e6a-925f520a99a8.png?resizew=243)
(1)作出面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9539f8fb13345b449274b67bbda995db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bf9ef324f1289e205e29fed105c38e.png)
您最近一年使用:0次
20-21高一下·全国·课后作业
解题方法
8 . 已知四面体
的棱长都相等,
是
的中点,则
与平面
所成角的正弦值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/69949e6a-56d1-43b4-a9c3-a97373e4f1b8.png?resizew=125)
您最近一年使用:0次
20-21高一下·全国·课后作业
解题方法
9 . 已知正三棱锥
的所有棱长都相等,则
与底面
所成角的余弦值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701202310144000/2702241440677888/STEM/d12f8d47d57846668e5101d77c51a57d.png?resizew=153)
您最近一年使用:0次
10 . 如图所示,四边形ABCD是正方形,DE⊥平面ABCD,DE=DA=2.
(2)求AE与平面BDE所成的角的大小.
(2)求AE与平面BDE所成的角的大小.
您最近一年使用:0次
2021-03-26更新
|
1405次组卷
|
7卷引用:【新教材精创】13.2.3 直线与平面的位置关系—直线与平面垂直的判定和性质练习
(已下线)【新教材精创】13.2.3 直线与平面的位置关系—直线与平面垂直的判定和性质练习(已下线)13.2 基本图形位置关系-2021-2022学年高一数学10分钟课前预习练(苏教版2019必修第二册)河南省信阳市浉河区新时代学校2021-2022学年高一下学期第三次月考数学试题(已下线)第32讲直线与平面垂直2(已下线)第32讲直线与平面垂直1山东省临沂市蒙阴县实中学2022-2023学年高一下学期期中考试数学试题(已下线)8.6.2 直线与平面垂直【第二练】“上好三节课,做好三套题“高中数学素养晋级之路