名校
解题方法
1 . 如图,
平面
,
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/5/1/2970185425920000/2971704287461376/STEM/82458735f5f5466ab6af02c104ec970a.png?resizew=203)
(1)求证:
平面
;
(2)求直线
与平面
所成角的正弦值;
(3)求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f555fb7ea6e77a6e0fe38586a3992d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d262480ffb55b7617f44b63f130c154a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88dac2c17c765517c2163ab43bbe1038.png)
![](https://img.xkw.com/dksih/QBM/2022/5/1/2970185425920000/2971704287461376/STEM/82458735f5f5466ab6af02c104ec970a.png?resizew=203)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d32e76582bf550593fdef53e081225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(3)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
您最近一年使用:0次
2022-05-03更新
|
1023次组卷
|
5卷引用:天津市南开中学2022-2023学年高三上学期统练11数学试题
天津市南开中学2022-2023学年高三上学期统练11数学试题天津市滨海新区塘沽第一中学2022届高三下学期高考适应性测试数学试题(已下线)临考押题卷04-2022年高考数学临考押题卷(天津卷)天津市耀华中学2022届高三下学期高考前冲刺(三)数学试题(已下线)考点18 空间中的角度和距离问题-2-(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)
名校
2 . 如图,
是一个四棱锥,已知四边形
是梯形,
平面
,
,
,
,
,点
是棱
的中点,点
在棱
上,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/313f396a-4920-4d00-96d5-ea90343b14c7.png?resizew=199)
(1)证明:直线
平面
;
(2)求直线
与平面
所成角的正弦值;
(3)求平面
与平面
的夹角的余弦值.
![](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/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada16b1abf359ee1c6edb056aa7f510a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.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/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11001bd2378b5b7bdef96cb9deab274b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/313f396a-4920-4d00-96d5-ea90343b14c7.png?resizew=199)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7175df06e33cad4e6bbc3f2f6b0a2986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
(3)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2022-02-19更新
|
774次组卷
|
6卷引用:天津市南开中学2022届高三上学期第一次月考数学试题
名校
解题方法
3 . 如图,
平面
,四边形
是矩形,四边形
为直角梯形,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893817730326528/2897329335853056/STEM/3f6e78b7-47fa-44ca-9d56-66da4ea45024.png?resizew=186)
(1)求证:
平面
;
(2)求平面
与平面
夹角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b312dab930cbbb9a4bb1a99f044dab73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b312dab930cbbb9a4bb1a99f044dab73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be082aedbea135ea8fdcadca2cf427b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcbde67cc84757b10bb66c47cee22de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f556bd2f45143b3ef33f411ecefe7555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c543f560d8a91d5d60c96feebff9ae50.png)
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893817730326528/2897329335853056/STEM/3f6e78b7-47fa-44ca-9d56-66da4ea45024.png?resizew=186)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a4a94e889d2869ea84082575fae52ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b312dab930cbbb9a4bb1a99f044dab73.png)
您最近一年使用:0次
2022-01-18更新
|
526次组卷
|
2卷引用:天津市第二十五中学2022-2023学年高二上学期期末数学试题
名校
解题方法
4 . 如图,在直三棱柱
中,已知
,
,
为棱
的中点,
为线段
的中点.
(1)求证:
平面
;
(2)求平面
与平面
夹角的余弦值;
(3)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b51da47ab8433342f7a319e412fefae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/1/85705492-062d-4f18-ace9-43ad8c44e64d.png?resizew=143)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd597851c0db4e4de4769e10e09383b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bca84ad86c648d3bb20c8909c8da3f.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bca84ad86c648d3bb20c8909c8da3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68810418922056adb838462f125dc403.png)
(3)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128bcefc524d180d611d6b6919eaca27.png)
您最近一年使用:0次
9-10高二下·内蒙古包头·期中
5 . 如图,在四棱锥
中,底面ABCD是正方形,侧棱
底面ABCD,
,E是PC的中点,作
交PB于点F.
平面EDB;
(2)求证:
平面EFD;
(3)求平面CPB与平面PBD的夹角的大小.
![](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/43d4c42112e0a22f240ce2ae432e5b4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a4a6a1e70241d600bc6c104313eac61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8c2b786c64e6a9ed2ec5670cde74f86.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45fbffb9e2c7fa7c5006cde8da0cabe.png)
(3)求平面CPB与平面PBD的夹角的大小.
您最近一年使用:0次
2022-01-09更新
|
1510次组卷
|
30卷引用:天津市南开区2020-2021学年高二上学期期末数学试题
天津市南开区2020-2021学年高二上学期期末数学试题(已下线)包头33中09-10高二下学期期中理科数学试题(已下线)2011年广东省揭阳市第一中学高一第一学期期末数学试卷(已下线)2010-2011学年山东省兖州市高二下学期期末考试数学(理)(已下线)2011-2012学年度广东省普宁第二中学高二上学期11月月考理科数学试卷(已下线)2012届广东省肇庆市封开县南丰中学高三复习 必修一和必修二综合测试A(已下线)2011-2012学年湖南省华容县高二第一学期期末考试理科数学试卷(已下线)2011-2012学年云南省大理云龙一中高二上学期期末考试理科数学试卷(已下线)2011-2012学年吉林省龙井市三中高二3月月考理科数学(已下线)2011-2012学年河南省许昌部分学校高二上学期期末联考理科数学试卷(已下线)2012-2013年浙江台州六校高二上期中联考理科数学试卷(已下线)2014届湖南省株洲市二中高三年级第二次月考文科数学试卷2015-2016学年青海省西宁四中高二上学期期末文科数学试卷2015-2016年新疆兵团农二师华山中学高二下期中理数学卷2017届甘肃兰州一中高三9月月考数学(理)试卷2016-2017学年河北卓越联盟高二理上学期月考三数学试卷江西省樟树中学2017-2018学年人教A版高一下学期第一次月考数学(理)试题天津市实验中学2019届高三热身数学(理)试题山西省临猗县临晋中学2020-2021学年高二上学期9月月考数学(理)试题(已下线)【新东方】杭州新东方高中数学试卷322黑龙江省宾县一中2020-2021学年高二第一学期第二次月考数学试题甘肃省会宁县第一中学2020-2021学年高一上学期第二次月考数学试题山东省菏泽市郓城县第一中学2021-2022学年高二下学期开学收心考试数学试题2004年普通高等学校招生考试数学(理)试题(天津卷)广东省汕尾市2022-2023学年高二下学期期末数学试题安徽省桐城中学2021-2022学年高二下学期开学检测数学试卷人教A版(2019)选择性必修第一册课本例题1.4 空间向量的应用广东省广州市空港实验中学2024届高三上学期期中数学试题贵州省清镇市博雅实验学校2023-2024学年高二上学期第四次月考数学试题数学(已下线)通关练04 空间向量与立体几何大题9考点精练(41题)- 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教A版2019选择性必修第一册)
6 . 如图,四棱锥
中,
底面
,
,
,
,
,E为
上一点,且
.
![](https://img.xkw.com/dksih/QBM/2022/1/5/2887934642855936/2889616252608512/STEM/d8c56dde-4f38-4d5f-94e3-86f7390716f0.png?resizew=139)
(1)求证:
平面
;
(2)求证:
平面
;
(3)求平面
与平面
的夹角的大小.
![](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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c30f6595dd643813b11ad71df61a10dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9536a2be7b84612f45cc875a00c5a5d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b5d2943803894bc5d204e75e2d172b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b05f661421735de6c6a643f83c6ef8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3ad276e6b32bd203fdacb42b1fe6d7.png)
![](https://img.xkw.com/dksih/QBM/2022/1/5/2887934642855936/2889616252608512/STEM/d8c56dde-4f38-4d5f-94e3-86f7390716f0.png?resizew=139)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/954c584f9c868d235e0fc1debb14428d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(3)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee4a6b8ef3e79b4482388c3391d8b18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a9b32570d553161be04d13954e92a1.png)
您最近一年使用:0次
名校
7 . 如图,四棱锥P - ABCD的底面是边长为2的正方形,侧面PCD⊥底面ABCD,且PC= PD=2,M,N分别为棱PC,AD的中点.
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878718720335872/2887219036266496/STEM/478c1da779504f82b13cd910c7158747.png?resizew=201)
(1)求证∶ BC⊥PD;
(2)求异面直线BM与PN所成角的余弦值;
(3)求点N到平面MBD的距离.
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878718720335872/2887219036266496/STEM/478c1da779504f82b13cd910c7158747.png?resizew=201)
(1)求证∶ BC⊥PD;
(2)求异面直线BM与PN所成角的余弦值;
(3)求点N到平面MBD的距离.
您最近一年使用:0次
2022-01-04更新
|
664次组卷
|
3卷引用:天津市南开区崇化中学2019-2020学年高二上学期期中数学试题
名校
解题方法
8 . 如图,在多面体ABCDEF中,AE⊥平面ABCD,AEFC是平行四边形,且AD∥BC,AB⊥AD,AD=AE=2,AB=BC=1.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/9b2817b6-179b-4af9-8c16-bd51c15aab53.png?resizew=180)
(1)求证:CD⊥EF;
(2)求平面ADE与平面DEB夹角的余弦值;
(3)若点P在棱CF上,直线PB与平面BDE所成角的正弦值为
,求线段CP的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/9b2817b6-179b-4af9-8c16-bd51c15aab53.png?resizew=180)
(1)求证:CD⊥EF;
(2)求平面ADE与平面DEB夹角的余弦值;
(3)若点P在棱CF上,直线PB与平面BDE所成角的正弦值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
您最近一年使用:0次
2021-12-25更新
|
685次组卷
|
4卷引用:天津市南开中学2021-2022学年高三上学期第二次统练数学试题
天津市南开中学2021-2022学年高三上学期第二次统练数学试题江西省赣州市教育发展联盟2021-2022学年高二上学期第7次联考高二数学(理)试题(已下线)2020年高考天津数学高考真题变式题16-20题(已下线)考点36 利用空间向量法解决立体几何的综合问题【理】-备战2022年高考数学典型试题解读与变式
名校
解题方法
9 . 如图,在三棱锥
中,平面
平面
,
,
,
分别为
、
的中点,
,
.
![](https://img.xkw.com/dksih/QBM/2021/11/11/2848859527716864/2849639249453056/STEM/bf47cd72-f084-48f7-a735-fe26c9b1dff8.png)
(1)求点
到直线
的距离
(2)求平面
与平面
夹角的余弦值
(3)已知
是平面
内一点,点
为
中点,且
平面
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf6dc837ae85207789b94d109c5c2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13d28cb7181257cf732af4b615fc47d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494ed20e68b1df31a3d7dfd31b427bef.png)
![](https://img.xkw.com/dksih/QBM/2021/11/11/2848859527716864/2849639249453056/STEM/bf47cd72-f084-48f7-a735-fe26c9b1dff8.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b61346bd4091070ba84a4046f87f365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
2021-11-12更新
|
411次组卷
|
3卷引用:天津市第二十五中学2021-2022学年高二上学期阶段检测数学试题
名校
10 . 如图,已知多面体
,
,
,
均垂直于平面
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/6ba1b967-69e7-43c9-b46a-857bb08be045.png?resizew=138)
(1)证明:
平面
;
(2)求平面
与平面
所成角的正弦值;
(3)线段
上是否存在一点
,使直线
与平面
所成的角的正弦值为
,若存在,求
的长,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d17d14819681c455a91d7678742368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a696a182fff038a86b2bbe8ca099442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1859959fdb4c5edd8056893f94a10a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e97fcdcfd6183b976a61ef3222c607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e918b70b02a73685e3c536c7f380e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1880586c33da315e49ccb6e2d531c6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a2749f3f4224a1753bcbe2e13b88fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c709354113697ec9c577c7b2449a12f0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/6ba1b967-69e7-43c9-b46a-857bb08be045.png?resizew=138)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4560fa4ad459b58b723c74bd24e51ebf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f664c0db517bec6886ff0b6100fd474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd06851d747f8ccf046bc807b2523e65.png)
(3)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1859959fdb4c5edd8056893f94a10a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd92f594c348f7a956607f7b381cc22a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
您最近一年使用:0次
2021-11-03更新
|
704次组卷
|
4卷引用:天津市南开区2021-2022学年高三上学期期中数学试题
天津市南开区2021-2022学年高三上学期期中数学试题(已下线)第35讲 利用传统方法解决立体几何中的角度与距离问题-2022年新高考数学二轮专题突破精练(已下线)考点34 二面角【理】-备战2022年高考数学典型试题解读与变式天津市静海区第一中学2021-2022学年高三上学期第四次阶段检测数学试题