1 . 在正方体
中,
,
,
,
分别为
,
,
,
的中点,则异面直线
与
所成角的大小是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e539f26ed5e0b20ff7220559324869a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-02-04更新
|
455次组卷
|
21卷引用:2021届全国著名重点中学新高考冲刺数学试题(5)
(已下线)2021届全国著名重点中学新高考冲刺数学试题(5)四川省邻水县第二中学2021-2022学年高三上学期9月月考数学理科试题(已下线)“8+4+4”小题强化训练(38)利用空间向量求空间角-2022届高考数学一轮复习(江苏等新高考地区专用)(已下线)考向32 空间点、线、面的位置关系(重点)-备战2022年高考数学一轮复习考点微专题(新高考地区专用)山西省运城市2022届高三上学期期中数学(文)试题河南省实验中学2021-2022学年高三上学期期中考试 数学(文)试题黑龙江省佳木斯市第一中学2021-2022学年高三上学期第五次调研考试数学理科试题河南省周口市六校2021-2022学年高三上学期12月联考文科数学试题内蒙古包头市第四中学2021-2022学年高三上学期期中考试数学(理)试题宁夏石嘴山市第三中学2023-2024学年高三上学期期中考试文科数学试卷(已下线)重难点6-1 空间角与空间距离的求解(8题型+满分技巧+限时检测)安徽省合肥一中、六中、八中2020-2021学年高二上学期期末理科数学试题安徽省合肥市第六中学2020-2021学年高二上学期期末数学(理)试题广西壮族自治区玉林市第十一中学(六校联考)2020-2021学年高一下学期期中数学试题湖北省十堰市丹江口市第一中学2021-2022学年高二上学期9月月考数学试题广西玉林市直六所普通高中2020-2021学年高一下学期期中数学试题(已下线)13.2.2 空间两条直线的位置关系-【帮课堂】(苏教版2019必修第二册)(已下线)专题8.6 空间直线、平面的垂直(一)【八大题型】-举一反三系列(已下线)6.3空间点、直线、平面之间的位置关系-【帮课堂】(北师大版2019必修第二册)(已下线)重难点专题12 利用几何法求异面直线所成的角-【帮课堂】(苏教版2019必修第二册)(已下线)第十一章:立体几何初步章末重点题型复习(1)-同步精品课堂(人教B版2019必修第四册)
名校
2 . 过平面
外的直线l作一组平面与
相交,若所得交线分别为a,b,c…,则这些交线的位置关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.相交于同一点 | B.相交但交于不同的点 |
C.平行 | D.平行或相交于同一点 |
您最近一年使用:0次
2021-05-12更新
|
927次组卷
|
15卷引用:河南省郑州市商丘市名师联盟 2020-2021学年高三11月质量检测巩固卷数学(理科)试题
河南省郑州市商丘市名师联盟 2020-2021学年高三11月质量检测巩固卷数学(理科)试题(已下线)热点09 立体几何-2021年高考数学【热点·重点·难点】专练(新高考)四川省攀枝花市2021届高三二模考试数学(文)试题四川省攀枝花市2021届高三二模考试数学(理)试题辽宁朝阳第一高级中学2020-2021学年高二上数学期中试题吉林省四平市第一高级中学2019-2020学年高二上学期第一次月考数学(理)试卷吉林省四平市第一高级中学2019-2020学年高二上学期第一次月考数学(文)试卷广西钦州市第四中学2020-2021学年高一3月份考试数学试题(已下线)第8课时 课中 空间中直线与直线的平行沪教版(2020) 必修第三册 同步跟踪练习 第10章 10.3.1 第2课时 直线与平面平行的性质定理沪教版(2020) 必修第三册 新课改一课一练 第10章 10.1.2相交平面沪教版(2020) 必修第三册 新课改一课一练 第10章 10.3.1.2直线与平面平行(二)(已下线)第28讲 直线与直线平行1(已下线)第29讲 直线与平面平行(已下线)8.5.1直线与直线平行(导学案) -【上好课】
名校
3 . 如图,在四棱锥
中,
底面
,
是直角梯形,
,
,
,点
是
的中点.
![](https://img.xkw.com/dksih/QBM/2020/12/10/2611322233356288/2613355892342784/STEM/40357f326a4b45028318ad61164bf0b7.png?resizew=265)
(Ⅰ)线段
上是否存在一点
,使得点
,
,
,
共面,存在请证明,不存在请说明理由;
(Ⅱ)若
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f1897a7e856b42f8cee0f286ad913d.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/4a0e5697eca3f5205cb7b343648240bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd8e727e4efc22b49649f71ae9c9d84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd3c2e2199cd4565c05b949bc21fc37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/2020/12/10/2611322233356288/2613355892342784/STEM/40357f326a4b45028318ad61164bf0b7.png?resizew=265)
(Ⅰ)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2899e607479d8d1c47d954ae9ebb7144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5102c216393e133fa25dba98cd78535.png)
您最近一年使用:0次
2020-12-13更新
|
366次组卷
|
2卷引用:四川省成都市高新区高2021届高三第三次阶段性考试理科数学试题
4 . 已知
是两条不同的直线,
是一个平面,则下列说法正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d1a34ae2b8c77f8d7e355c6d1d667e.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次
5 . 已知直线
平面
,直线
平面
,则下列结论中错误的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d983307d4345e724d9dd44935274843d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次
6 . 如图,已知四边形
和
均为直角梯形,
,
且
,平面
平面
,
.
![](https://img.xkw.com/dksih/QBM/2017/1/19/1619466238443520/1619466239090688/STEM/f2541006f3b4496786f409f1c2468620.png)
(1)求证:
平面
;
(2)求平面
和平面
所成锐二面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693cd6179b2a92f03153ce12a0e86b95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cc3c947dc4deaf4eb5266772e43bee0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1057fba69b1554ceff580f73dbb28ff3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf9a6db3571fa57bfa2d5e4d44c51b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693cd6179b2a92f03153ce12a0e86b95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/502fda7d60b3aa884b23094fac16ab63.png)
![](https://img.xkw.com/dksih/QBM/2017/1/19/1619466238443520/1619466239090688/STEM/f2541006f3b4496786f409f1c2468620.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e2fef2c0e49ecae8688ca60802310e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
您最近一年使用:0次
7 . 如图,在直三棱柱
中,
是
的中点.
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573097236471808/1573097242828800/STEM/7bd38722762644ffb7bc4b106d13a041.png)
(1)求证:
平面
;
(2)若
,
,
,求平面
与平面
所成二面角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f47d6a88e962cd790d2f159c021ec1.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573097236471808/1573097242828800/STEM/403cc5c40e6b42169acb0f2ddeeeba71.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573097236471808/1573097242828800/STEM/bfff7f1c0b2c4a16995bc99bbd49c7fb.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573097236471808/1573097242828800/STEM/7bd38722762644ffb7bc4b106d13a041.png)
(1)求证:
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573097236471808/1573097242828800/STEM/23c2ca8e379944998948846b165d357e.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573097236471808/1573097242828800/STEM/82c61fbcfce241fda5401b1d1c5ac100.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573097236471808/1573097242828800/STEM/f30643a9cb9a4e6dbc883630a0e15418.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573097236471808/1573097242828800/STEM/38e91e88d3b44cf996666fd564664490.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573097236471808/1573097242828800/STEM/62ed313be30e420b8a03f9b9896c5e0f.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573097236471808/1573097242828800/STEM/82c61fbcfce241fda5401b1d1c5ac100.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573097236471808/1573097242828800/STEM/362668c1d994434b87c4ac1efd4d9653.png)
您最近一年使用:0次
8 . 设
,
为空间两条不同的直线,
,
为空间两个不同的平面,给出下列命题:
①若
,
,则
; ②若
,
,则
;
③若
,
,则
;④若
,
,则
.
其中所有正确命题的序号是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d1a34ae2b8c77f8d7e355c6d1d667e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74c62c14a017007a6bdfe25eada9c433.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f14f38f3626fddd41341e1faad656e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/517f52b173074ce81d881010aa592913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07d966f5de8a202970f319a205ac3443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f14f38f3626fddd41341e1faad656e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a93a52c2b943e4c70ace99ed802d2b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59125d06d7a90bf51db555a988025c34.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d86b6df229c2d41afe5d7ff2a46897f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/517f52b173074ce81d881010aa592913.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573097236471808/1573097242525696/STEM/738ff2048d7c45fc93a696d5ed0e1602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d86b6df229c2d41afe5d7ff2a46897f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07d966f5de8a202970f319a205ac3443.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573097236471808/1573097242525696/STEM/28bba3a34a4c466993b5be87f20c927a.png)
其中所有正确命题的序号是
A.③④ | B.②④ | C.①② | D.①③ |
您最近一年使用:0次
9 . 若
是两条不同的直线,
是三个不同的平面,则下列为真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ba63ad02b1d5af2982fac3d91eb15c.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次
2016-12-05更新
|
1023次组卷
|
8卷引用:2017届湖北黄冈市高三9月质检数学(理)试卷
10 . 如图,在四棱锥
中,底面
为直角梯形,
,
底面
,
,
为
的中点,
为棱
的中点.
![](https://img.xkw.com/dksih/QBM/2016/9/8/1573007093145600/1573007099224064/STEM/d180af331854481bba52a4ea298e7db0.png)
(1)证明:
平面
;
(2)已知
,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6153163fecdf3f410411048428ccaef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083201b6b527a852ff51831bd71c99cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e458f4503e211b542f6f30c8a34eaca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57cdaf395942435e770920e0cf62605.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/2016/9/8/1573007093145600/1573007099224064/STEM/d180af331854481bba52a4ea298e7db0.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df22ab3b1b32ff5e07407c133ed1bdcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c233190f9339e777fe26c7b690541baf.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e159921cdcf0e3bb64ddc32015e1a361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c233190f9339e777fe26c7b690541baf.png)
您最近一年使用:0次