名校
1 . 如图,在多面体
中,平面
⊥平面
.四边形
为正方形,四边形
为梯形,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/e9fe3581-2648-4cce-9235-22a7c6db79dc.png?resizew=173)
(1)求证:
⊥
;
(2)求直线
与平面
所成角的正弦值;
(3)线段BD上是否存在点M,使得直线
平面
?若存在,求
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83083ced7dca9d453661234a575d7a0c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/e9fe3581-2648-4cce-9235-22a7c6db79dc.png?resizew=173)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
(3)线段BD上是否存在点M,使得直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932a04304f2d4975955d4baabb2deeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6114761b369162cda06f08e31c23fc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258ed4f5282317bb067a41104d559222.png)
您最近一年使用:0次
2023-11-15更新
|
612次组卷
|
5卷引用:【区级联考】北京市朝阳区2019届高三第一次(3月)综合练习(一模)数学理试题
【区级联考】北京市朝阳区2019届高三第一次(3月)综合练习(一模)数学理试题北京市朝阳区2019届高三第一次综合练习数学(理)试题北京市铁路第二中学2023-2024学年高二上学期期中考试数学试题北京市东直门中学2023-2024学年高一上学期期中考试数学试题(已下线)13.2.4 平面与平面的位置关系(2)-【帮课堂】(苏教版2019必修第二册)
名校
2 . 如图,在三棱锥
中,平面
平面
,
是以
为斜边的等腰直角三角形,
,
,
为
中点,
为
内的动点(含边界).
![](https://img.xkw.com/dksih/QBM/2023/10/14/3346119356293120/3348038980730880/STEM/fa000488120d40448813e4729225b425.png?resizew=207)
(1)求证:
平面
;
(2)求平面
与平面
夹角的余弦值;
(3)若
平面
,求直线
与平面
所成角的正弦值的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fcc2aba06dbc28f39d111a10233ff12.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/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://img.xkw.com/dksih/QBM/2023/10/14/3346119356293120/3348038980730880/STEM/fa000488120d40448813e4729225b425.png?resizew=207)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a0a858194b17ae1e609ed341d75194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d58f9019097bd05037aefd5c322916.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次
2023-10-17更新
|
304次组卷
|
2卷引用:北京市朝阳区北京工业大学附属中学2023-2024学年高二上学期10月月考数学试题
解题方法
3 . 如图,在四棱锥
中,平面
平面
为
的中点,
,
.
(1)求证:平面
平面
;
(2)求平面
与平面
的余弦值;
(3)在线段
上是否存在点
,使得
平面
?若存在,求出点
的位置;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d11e19c84255eb0431415c2dec553d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f9dab3914e54230b717252736be326.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d2d775c03b3ea1674d5b861d6fb0fe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/17/4b62daca-038b-4477-b354-be2de38bf9e5.png?resizew=164)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955e030d649a3c7885071b4bf849993c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64eb31601464364be2baf4aa87404bcd.png)
(3)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0457394ce4f2dc8d940c565c94dcf557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
名校
4 . 如图,正方形
的边长为
,
,
分别为
,
的中点,在五棱锥
中,
为棱
的中点,平面
与棱
,
分别交于点
,
.
;
(2)若
底面
,且
,求直线
与平面
所成角的大小,并求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4d3d7a05e8f4f5f5a3474cbd0b1e0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2e2c0d4ac2bd79f6cea7a9b1a50662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be89b9d1709d7974a108142c5fa2ccec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20af148464904e21f4374cc8fb886fba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a086b085224857d7d0c92bc5c2d6465.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b1a3078dc4803bd5e16833ddd459e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20af148464904e21f4374cc8fb886fba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d58f9019097bd05037aefd5c322916.png)
您最近一年使用:0次
2023-09-29更新
|
476次组卷
|
8卷引用:北京市第八十中学2024届高三下学期开学考试数学试卷
名校
5 . 如图,在四棱锥
中,底面ABCD是矩形,
底面ABCD,且
,E是PC的中点,平面ABE与线段PD交于点F.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/b0e2a027-ef50-4abb-a340-71566cdcccea.png?resizew=166)
(1)证明:F为PD的中点;
(2)再从条件①、条件②这两个条件中选择一个作为已知,求直线BE与平面PAD所成角的正弦值.
条件①:三角形BCF的面积为
;
条件②:三棱锥
的体积为1.
注:如果选择条件①和条件②分别解答,按第一个解答计分.
![](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/3b610c9b9948d88eda8de0fb8d1cf972.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/b0e2a027-ef50-4abb-a340-71566cdcccea.png?resizew=166)
(1)证明:F为PD的中点;
(2)再从条件①、条件②这两个条件中选择一个作为已知,求直线BE与平面PAD所成角的正弦值.
条件①:三角形BCF的面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4056761b8f826eeb6ad8c9a151d3c9c.png)
条件②:三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596ce49d6e81550d75734fe89b0fa495.png)
注:如果选择条件①和条件②分别解答,按第一个解答计分.
您最近一年使用:0次
2023-05-05更新
|
1421次组卷
|
5卷引用:北京市朝阳区2023届高三二模数学试题
名校
解题方法
6 . 如图,在三棱柱
中,
平面ABC,D,E分别为AC,
的中点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/c2f816fa-fbcc-44e5-be9a-42e557df1faa.png?resizew=149)
(1)求证:
平面BDE;
(2)求直线DE与平面ABE所成角的正弦值;
(3)求点D到平面ABE的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1efa2b0018617bd579875185dafca39a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9d5815dc775d5a5810fff0b016a8d5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/c2f816fa-fbcc-44e5-be9a-42e557df1faa.png?resizew=149)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
(2)求直线DE与平面ABE所成角的正弦值;
(3)求点D到平面ABE的距离.
您最近一年使用:0次
2023-03-27更新
|
2299次组卷
|
7卷引用:北京市朝阳区2023届高三一模数学试题
7 . 如图,在四棱锥
中,
平面
.
为
的中点,点
在
上,且
.
(1)证明:平面
平面
;
(2)求平面
与平面
所成角的余弦值;
(3)问:棱
上是否存在一点
,使点
到平面
的距离为
,若存在,求出
的值,若不存在,说明理由.
![](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/a1040f05d64d519ed04dca2b771de692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e253397d209d74dd1c1f2a38f52738ab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/25/0ad70629-edc2-4b1d-97cc-e2466caa5da4.png?resizew=163)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6501f1c913a4ef64957a2f01ab5baa15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb8697622fb9d281cf44feb4adaf14a.png)
(3)问:棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb8697622fb9d281cf44feb4adaf14a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6595f862f1b3dfc3e8ec0331c8cc9ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af14f0038a42481df5e44350b92cb5bd.png)
您最近一年使用:0次
2023-11-03更新
|
690次组卷
|
3卷引用:北京市朝阳区2024届高三上学期数学期中模拟数学试题
北京市朝阳区2024届高三上学期数学期中模拟数学试题(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【讲】河北省承德市双滦区实验中学2024届高三上学期11月月考数学模拟试题(1)
解题方法
8 . 如图,四棱锥
的底面是矩形,
底面ABCD,
,M为BC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/29/726658cd-4094-4fc6-bc8d-4ea871c3cc1f.png?resizew=153)
(1)求证:
平面PBD;
(2)求平面ABCD与平面APM所成角的余弦值;
(3)求D到平面APM的距离.
![](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/35883d6dd1d3d1454275b3b9574090ae.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/29/726658cd-4094-4fc6-bc8d-4ea871c3cc1f.png?resizew=153)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0edb1508fc95765f3bb316bcb5252d.png)
(2)求平面ABCD与平面APM所成角的余弦值;
(3)求D到平面APM的距离.
您最近一年使用:0次
2023-03-29更新
|
5272次组卷
|
8卷引用:北京市朝阳区2023届高三一模数学试题查漏补缺练习 (2)
解题方法
9 . 如图,在三棱柱ABC—A1B1C1中,四边形A1ACC1是边长为4的正方形,
,点D为BB1中点.再从条件①、条件②、条件③中选择两个能解决下面问题的条件作为已知,并作答.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/c9f0746a-4ebe-4a95-9dfb-9d4e3f2170c1.png?resizew=154)
(1)求证:AB⊥平面A1ACC1;
(2)求直线BB1与平面A1CD所成角的正弦值;
(3)求点B到平面A1CD的距离.
条件①:
; 条件②:
; 条件③:平面ABC⊥平面A1ACC1.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/c9f0746a-4ebe-4a95-9dfb-9d4e3f2170c1.png?resizew=154)
(1)求证:AB⊥平面A1ACC1;
(2)求直线BB1与平面A1CD所成角的正弦值;
(3)求点B到平面A1CD的距离.
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d399572bdc5816897500121034d1100c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
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2023-03-27更新
|
989次组卷
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3卷引用:北京市朝阳区2023届高三一模数学试题查漏补缺练习 (2)
11-12高二上·广东·期末
名校
解题方法
10 . 如图,四棱锥
的底面
是矩形,
⊥平面
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/12/2921a67f-aa9c-4c68-988e-ff0c43e53be0.png?resizew=153)
(1)求证:
⊥平面
;
(2)求二面角
余弦值的大小;
(3)求点
到平面
的距离.
![](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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b10835116b9b777a666b438c907b49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e46571701ccaa18d3c844ab99ee6c30e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/12/2921a67f-aa9c-4c68-988e-ff0c43e53be0.png?resizew=153)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d9f756419912dd298a0d6857130c80.png)
(3)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
您最近一年使用:0次
2023-04-18更新
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1330次组卷
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