名校
1 . 如图,在四棱锥P-ABCD中,AD⊥平面ABP,BC//AD,∠PAB=90°,PA= AB =2,AD=3,BC =1,E是PB的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/19/d6cfe16b-2317-4f68-a9ce-42e0366bf59a.png?resizew=216)
(1)证明:PB⊥平面ADE;
(2)求直线AP与平面AEC所成角的正弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/19/d6cfe16b-2317-4f68-a9ce-42e0366bf59a.png?resizew=216)
(1)证明:PB⊥平面ADE;
(2)求直线AP与平面AEC所成角的正弦值.
您最近一年使用:0次
2022-06-18更新
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746次组卷
|
6卷引用:吉林省松原市宁江区吉林油田高级中学2021-2022学年高二上学期期初数学考试试题
名校
2 . 如图,在四棱锥
中,底面
是边长为4的正方形,
是等边三角形,
平面
,E,F,G,O分别是PC,PD,BC,AD的中点.
![](https://img.xkw.com/dksih/QBM/2022/4/25/2965614666448896/2967107647184896/STEM/6fbd1ff5-37dc-414d-9e3d-7c14c9345937.png?resizew=221)
(1)求证:
平面
;
(2)求平面
与平面
的夹角的大小;
(3)线段PA上是否存在点M,使得直线GM与平面
所成角为
,若存在,求线段PM的长;若不存在,说明理由.
![](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/55a675310c8ba418e5a59beb7317e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://img.xkw.com/dksih/QBM/2022/4/25/2965614666448896/2967107647184896/STEM/6fbd1ff5-37dc-414d-9e3d-7c14c9345937.png?resizew=221)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(3)线段PA上是否存在点M,使得直线GM与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
您最近一年使用:0次
2022-04-27更新
|
2374次组卷
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33卷引用:吉林省长春市第六中学2023-2024学年高二上学期1月期末考试数学试题
吉林省长春市第六中学2023-2024学年高二上学期1月期末考试数学试题2020届山东省潍坊市高三2月数学模拟试题(一)(已下线)备战2020年高考数学之考场再现(山东专版)062020届山东省寿光市第二中学高三线上2月29日数学高考模拟题(三)2020届北京八中高三3月学模拟考试数学(二)试题2020届北京市第八中学高三下学期自主测试(二)数学试题山东省日照五莲县丶潍坊安丘市、潍坊诸城市、临沂兰山区2020届高三6月模拟数学试题天津市北辰区2020届高考二模数学试题(已下线)第9篇——立体几何与空间向量-新高考山东专题汇编(已下线)专题16 立体几何-2020年高考数学母题题源解密(北京专版)天津市南开中学2020-2021学年高二上学期期中数学试题北京市第十二中学2020-2021学年高二12月月考数学试题天津市河西区2021-2022学年高二上学期期中数学试题北京交通大学附属中学2021-2022学年高二上学期期末考试数学试题(已下线)第3讲 立体几何中的向量方法(讲)-2022年高考数学二轮复习讲练测(新教材地区专用)(已下线)类型三 立体几何与空间向量-【题型突破】备战2022年高考数学二轮基础题型+重难题型突破(新高考专用)天津市部分区2022届高三下学期质量调查(一)数学试题天津市南开区2022届高三下学期三模数学试题甘肃省张掖市临泽县第一中学2021-2022学年高二下学期期中考试数学(理)试题北京市朝阳区清华大学附属中学朝阳学校2021-2022学年高二上学期期中数学试题天津市和平区第二十中学2022-2023学年高三上学期期中数学试题广西桂林市中山中学2022-2023学年高三上学期10月月考数学试题北京市石景山区2019-2020学年高三上学期期末考试数学试题天津市滨海新区2023届高三三模数学试题黑龙江省牡丹江市第二高级中学2023届高三上学期期中数学试题(已下线)高二上学期期中【全真模拟卷02】(人教A版2019)(原卷版)江苏省郑梁梅高级中学2022-2023学年高二下学期4月月考数学试题天津市九十六中学2022-2023学年高二上学期期末数学试题天津市蓟州区第一中学2023-2024学年高三上学期第一次学情调研数学试题江西省贵溪市实验中学2024届高三上学期新高考模拟检测(三)数学试题天津市北师大静海实验学校2023-2024学年高二上学期第三次月考数学试题四川省眉山市北外附属东坡外国语学校2023-2024学年高二下学期开学考试数学试题(已下线)第七章 应用空间向量解立体几何问题拓展 专题二 平面法向量求法及其应用 微点1 平面法向量求法及其应用(一)【培优版】
3 . 直三棱柱
中,
为正方形,
,
,
为棱
上任意一点,点
、
分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/b695deef-adb7-4abd-ba60-47e8b78cf131.png?resizew=184)
(1)求证:
平面
;
(2)当点
为
中点时,求直线
和平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e918b70b02a73685e3c536c7f380e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/b695deef-adb7-4abd-ba60-47e8b78cf131.png?resizew=184)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063510e3c1fb6a7ccc3b8e3e3c7d660e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe67036b4671b5d2a5c55b48c4d3bb9.png)
您最近一年使用:0次
2022-03-10更新
|
601次组卷
|
2卷引用:吉林省长春市普通高中2022届高三质量监测(二)理科数学试题
名校
解题方法
4 . 如图所示的四棱锥
中,底面ABCD为正方形,平面
平面ABCD,点O,M,E分别是AD,PC,BC的中点,
,
.
![](https://img.xkw.com/dksih/QBM/2022/3/4/2928971824021504/2930617099264000/STEM/f178a283-03c7-456f-a3ae-6819dd3db651.png?resizew=188)
(1)求证:
平面
;
(2)求三棱锥
的体积.
![](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/62974d34de3a12418d6b700420afd1b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2173e7e6738c4f28d7dd61ef81d03d.png)
![](https://img.xkw.com/dksih/QBM/2022/3/4/2928971824021504/2930617099264000/STEM/f178a283-03c7-456f-a3ae-6819dd3db651.png?resizew=188)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f84e995fae3d235a050d29d5f271f1c.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e682db81a82443f63a567eb29f4aa7bc.png)
您最近一年使用:0次
2022-03-06更新
|
969次组卷
|
5卷引用:吉林省白山市抚松县第一中学2021-2022学年高一下学期第二次月考数学试题
名校
5 . 如图,四边形ABCD与四边形BDEF均为菱形,
,
.
![](https://img.xkw.com/dksih/QBM/2021/12/24/2879309076627456/2928155737235456/STEM/2b86be23-4edd-4562-91b3-4289e7903eda.png?resizew=182)
(1)求证:
平面BDEF;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd3ed8807db1250667c70433e1b6f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6b27bd5f1437c638082a7eec033b4c.png)
![](https://img.xkw.com/dksih/QBM/2021/12/24/2879309076627456/2928155737235456/STEM/2b86be23-4edd-4562-91b3-4289e7903eda.png?resizew=182)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed7a8116d2f02b52c33fb7a49fc0d1ae.png)
您最近一年使用:0次
名校
6 . 如图,在三棱柱
中,
平面
,
,
,
,点
分别在棱
和棱
上,且
,
,
为棱
的中点
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/14/d17cc418-7cbc-4fd2-9f67-ecd11d4b44a1.png?resizew=200)
(Ⅰ)求证:
平面
;
(Ⅱ)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8bfe2553e852df73185d017c0a62fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209acf15985d1ea1ad86fc4a37e38c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c122ca7141c43c15c783968f5f0dbc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0761165f1176f3a5fe4f7b052832316d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/14/d17cc418-7cbc-4fd2-9f67-ecd11d4b44a1.png?resizew=200)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eadc76eecc537dec6a34ee1b2bc722c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1a1b7edecd3344707cf04ea3e86916.png)
(Ⅱ)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4feab537a7aaa3ea5a47bbed9e9421c4.png)
您最近一年使用:0次
2021-10-20更新
|
428次组卷
|
2卷引用:吉林省长春市第二十九中学2021-2022学年高二上学期第一学程考试(月考)数学试题
7 . 如图,在四棱锥
中,底面是边长为3的菱形
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/3/9/2932408168513536/2933828615929856/STEM/2c15c30345134bea917756a7f7231518.png?resizew=320)
(1)证明:
平面
.
(2)若棱
上存在一点
满足
,求
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/2b96fac11d72f72c805dbddb8da72d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff32f0f9c0341416e1a6bfa499983fcc.png)
![](https://img.xkw.com/dksih/QBM/2022/3/9/2932408168513536/2933828615929856/STEM/2c15c30345134bea917756a7f7231518.png?resizew=320)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若棱
![](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/adc90c2d45477e166b02359525f40aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e6c2dad46a9052a4185a4f7b4ae8a2e.png)
您最近一年使用:0次
名校
解题方法
8 . 如图为一块直四棱柱木料,其底面
满足:
,
.
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897002878722048/2926845450665984/STEM/e965b444-13ae-43bd-b609-5f5bac543f48.png?resizew=156)
(1)要经过平面
内的一点
和棱
将木料锯开,在木料表面应该怎样画线?(借助尺规作图,并写出作图说明,无需证明)
(2)若
,
,当点
是矩形
的中心时,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897002878722048/2926845450665984/STEM/e965b444-13ae-43bd-b609-5f5bac543f48.png?resizew=156)
(1)要经过平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c52091eb745de866044477641a7c55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8745717601cd14b46c2298919b41b502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f9660760804ff01bbc9319b7342191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b724168afaee2ecddf97257180be18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f96c341e13ce6cbbc5975f0ef53001.png)
您最近一年使用:0次
2022-03-01更新
|
589次组卷
|
4卷引用:吉林省吉林市2021-2022学年高三上学期第二次调研测试数学(文)试题
吉林省吉林市2021-2022学年高三上学期第二次调研测试数学(文)试题(已下线)重难点03 立体几何与空间向量-2022年高考数学【热点·重点·难点】专练(全国通用)河北省石家庄市十五中2021-2022学年高一下学期期中数学试题(已下线)专题08 立体几何解答题常考全归类(精讲精练)-1
名校
9 . 如图,已知等腰梯形
中,
,
,
是
的中点,
,将
沿着
翻折成
,使平面
平面
.
平面
;
(2)求
与平面
所成的角;
(3)在线段
上是否存在点
,使得
平面
,若存在,求出
的值;若不存在,说明理由.
![](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/abfb2735e1683a6ae86b5b97a0032e4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619e1e12cc9037b65ec7ee72160e9022.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad09a769a75b107390b9eeccc929f761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f38a857b9fabe179c565feb88de4175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7c60a0de546f75b46348265746aa707.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6bfad3f7e65188bcf7f62ea5acdbf4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbee3d2962bee74bf65ad4e71bca155.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f1158eaa2e338f564eb18de5bef1d25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/257f33a7c02e440407ae57dc42de06e6.png)
(3)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3123da0313d458c833e82aaa234b9117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb87785b2842459c59b2571aac7374b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3324bc6bf263ca1feeaf1b61eddab330.png)
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2021-10-02更新
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8卷引用:吉林省长春市第二实验中学2022-2023学年高一下学期期中考试数学试题
12-13高三上·辽宁本溪·期末
10 . 如图,四棱锥P-ABCD中,PA⊥底面ABCD,AB⊥AD,点E在线段AD上,且CE∥AB.
![](https://img.xkw.com/dksih/QBM/2022/1/6/2888671858360320/2895265738760192/STEM/d4d7892c-fdec-480a-9f25-9a8fd79992e4.png?resizew=206)
(1)求证:CE⊥平面PAD;
(2)若PA=AB=1,AD=3,CD=
,∠CDA=45°,求四棱锥P-ABCD的体积.
![](https://img.xkw.com/dksih/QBM/2022/1/6/2888671858360320/2895265738760192/STEM/d4d7892c-fdec-480a-9f25-9a8fd79992e4.png?resizew=206)
(1)求证:CE⊥平面PAD;
(2)若PA=AB=1,AD=3,CD=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e051d14fd6a787387995331f5e6d026.png)
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2022-01-15更新
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1528次组卷
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22卷引用:2015-2016学年吉林省通榆县一中高二上学期第一次月考文科数学试卷
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