名校
解题方法
1 . 在斜三棱柱
中,底面是边长为4的正三角形,
,
.
平面
;
(2)证明:
;
(3)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c3a693e8339e34c6f15f72a1aae75e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d26208e5d58cc5abf1af936480d1932b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f647de53756993a680347e8ce3c0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a211ad5a06b505b8365a62c1946f3cb7.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eacc0e7474802ce634de6f55a3287115.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
您最近一年使用:0次
2022-07-02更新
|
620次组卷
|
3卷引用:江苏省宿迁市2021-2022学年高一下学期期末数学试题
名校
2 . 如图,在正三棱柱
中,
分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/29/68c20bf2-0209-4201-b186-c060d2015bbb.png?resizew=244)
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
平面
.
(2)求直线
与平面
所成角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f2185273bf04c11118c7954f7ec822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602e5c7566b69aee8a7ddd18f825bf8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24cfad1ba71a78d8f415335cde2f8c52.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/29/68c20bf2-0209-4201-b186-c060d2015bbb.png?resizew=244)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdcfe69b939fd1c271747fe9d37ccdf9.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f4d9c3f1e496cc3fa3401ffaedd7e6.png)
您最近一年使用:0次
2022-06-29更新
|
702次组卷
|
4卷引用:河北省承德高中2021~2022学年高一下学期六月联考数学试题
3 . 如图,已知四棱锥
平面
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1e0d0d5b6512c8299e5b30dd9af6c5.png)
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5871f03ab98cfbd037ef45bb9e390174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa003ffef67888a7821243f1f93f1e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1e0d0d5b6512c8299e5b30dd9af6c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45fbffb9e2c7fa7c5006cde8da0cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
您最近一年使用:0次
4 . 如图1,在梯形
中,
,
,
,将
沿
折成如图2所示的三棱锥
,且平面
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/8/271faef4-b5f3-412d-b1e9-f501609ede9b.png?resizew=323)
(1)证明:
;
(2)设N为线段
的中点,求直线
与平面
所成角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a0e5697eca3f5205cb7b343648240bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d734dedabe1864d85b647681e8887187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f517953a21c2a45fd8465072c44bfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17b7a10200a8e7b6ddcb375b0747107.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e6dc2c16b657672402b9b189d1ad04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d3f5f4c4419913c1232b7aae03ade.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/8/271faef4-b5f3-412d-b1e9-f501609ede9b.png?resizew=323)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65334978b0519b379910dfc4acf8344.png)
(2)设N为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3533837e3d08c461dea031a44e5424d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
5 . 如图,在正方体
中,点M,N,P,E,F分别是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/9/fa600a7d-0e3e-41c6-840e-3a56640bda00.png?resizew=159)
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
平面
;
(2)求
与面
所成角的正弦值;
(3)请判断直线
与平面
的位置关系(不需说明理由).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d3062a2e1d37f6277b2627b560df51f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/9/fa600a7d-0e3e-41c6-840e-3a56640bda00.png?resizew=159)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d853e58bc8dd262f99df3827ead644f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52173c8cc44246823c2bee21a783b731.png)
(3)请判断直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52173c8cc44246823c2bee21a783b731.png)
您最近一年使用:0次
6 . 自古以来,斗笠是一个防晒遮雨的用具,是家喻户晓的生活必需品之一,主要用竹篾和一种叫做棕榈叶染白后编织而成,已列入世界非物质文化遗产名录.现测量如图中一顶斗笠,得到图中圆锥
模型,经测量底面圆
的直径
,母线
,若点
在
上,且
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/1/7a2dbbf1-3a38-4a6d-87a7-f1087f1c6cf7.png?resizew=246)
(1)证明:
平面
;
(2)求直线
和平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd20754e7a429dfa1e87eeff0907e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0edce4f127d8f2da994e2ea78e4dee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1721f5eb9a589d1185a3d1dd225f6a11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/2022/6/28/3011148409806848/3012440204394496/STEM/0da52f64d14645c7973f32be7d69a9e4.png?resizew=189)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/1/7a2dbbf1-3a38-4a6d-87a7-f1087f1c6cf7.png?resizew=246)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002cc6a0373255f39172cdee62fb6b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15b63176f43bc7a0654d0f6f45e7429.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15b63176f43bc7a0654d0f6f45e7429.png)
您最近一年使用:0次
7 . 如图,在四棱锥
中,底面ABCD为矩形,
,点E为线段PC的中点,且
.
;
(2)求直线PB与平面ADE所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316685631676ce839da7ced55501b2cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4999d4fbcbe15f78c29d518f25d317c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2951b9f77413d5f062acb300b09de1f6.png)
(2)求直线PB与平面ADE所成角的正弦值.
您最近一年使用:0次
2022-06-25更新
|
749次组卷
|
2卷引用:江苏省盐城市2021-2022学年高二下学期期末数学试题
名校
解题方法
8 . 如图,在正三棱柱
中,D是棱BC上的点(不与点C重合),
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/a7306756-b1f1-4abf-b071-8a7102b27c23.png?resizew=145)
(1)证明:平面
平面
;
(2)若
,求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9499f0e312799d87f5377f30565abc6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/a7306756-b1f1-4abf-b071-8a7102b27c23.png?resizew=145)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b9a3f868837555eb40234b3375f4a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/446091491fb55549972f35a206fcab1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba9e20d667d04bf3ee7f55cc795ce01.png)
您最近一年使用:0次
2022-11-09更新
|
416次组卷
|
3卷引用:江苏省南京市2022-2023学年高二上学期期中数学试题
江苏省南京市2022-2023学年高二上学期期中数学试题四川省乐山沫若中学2022-2023学年高二上学期第二次月考(期中考试)数学(文)试题(已下线)期中真题必刷易错60题(22个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)
9 . 如图,在三棱柱
中,底面
是正三角形,侧面
为菱形,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/14/f0521453-0004-4a1a-808b-497a88306cd5.png?resizew=243)
(1)证明:
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be445f94888b34161b6d59d458928e35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04aa3abd2a06b944b8ddea23337eae6e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/14/f0521453-0004-4a1a-808b-497a88306cd5.png?resizew=243)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f8b463fcecf0a757f386db56e074d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b7903de4be7d5dc1175cfbf6e8da9f.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
您最近一年使用:0次
解题方法
10 . 如图,在四棱锥
中,
底面
,且
,
,
,
,M为棱
上一点.
![](https://img.xkw.com/dksih/QBM/2022/9/26/3074962476498944/3077494980755456/STEM/8111400f7f9e47aeb50e95560c1f5418.png?resizew=204)
(1)若
,证明:M为
的中点;
(2)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/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41d5a42a8509e15a0dca186f06be73dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6281306726065e7075c579b9b66537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a755edadca4e4fc27fd49559b8d691ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/2022/9/26/3074962476498944/3077494980755456/STEM/8111400f7f9e47aeb50e95560c1f5418.png?resizew=204)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51584d41544d9c0fb00f5f14d4c7cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次