解题方法
1 . 如图,在正方体
中,求直线
和平面
所成的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/756d4d8a7051af5dae3ef56cb9e47c5b.png)
您最近一年使用:0次
2023-09-19更新
|
283次组卷
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3卷引用:人教A版(2019)必修第二册课本例题8.6 空间直线、平面的垂直
人教A版(2019)必修第二册课本例题8.6 空间直线、平面的垂直吉林省白城市通榆县毓才高级中学有限责任公司2023-2024学年高二上学期10月期中数学试题(已下线)8.6.2 直线与平面垂直【第一练】“上好三节课,做好三套题“高中数学素养晋级之路
名校
解题方法
2 . 图①是由矩形
,
和菱形
组成的一个平面图形,其中
,
,
.将其沿
,
折起使得
与
重合,连接
,如图②.
平面
;
(2)证明:
//平面
;
(3)求直线
与平面
所成角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d498a0467ff3c577a7ed175d7bffd885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0da522aef3c452767df89b8d0eb62de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de93a4fa2069aed282b7a97a4b41afbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/729c048c85a0c12eae9352dbe094dbcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693cd6179b2a92f03153ce12a0e86b95.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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2023-08-02更新
|
552次组卷
|
5卷引用:山东省威海市2022-2023学年高一下学期期末数学试题
山东省威海市2022-2023学年高一下学期期末数学试题山东省青岛市第五十八中学2022-2023学年高一下学期5月阶段性模块考试数学试题(已下线)8.6.3平面与平面垂直——课后作业(基础版)(已下线)重难点专题13 轻松搞定线面角问题-【帮课堂】(苏教版2019必修第二册)【人教A版(2019)】专题15立体几何与空间向量(第四部分)-高一下学期名校期末好题汇编
名校
3 . 如图,在直三棱柱
中,D为棱AB的中点,E为侧棱
的动点,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09288c5259c905f6509051115f2d7ff1.png)
.
,使得
∥平面
?若存在,求出
的值;若不存在,请说明理由;
(2)设
,
,
,求DE与平面
所成角的正弦值的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09288c5259c905f6509051115f2d7ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8b50bf37cfd8cecf855ea7a817b0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b7903de4be7d5dc1175cfbf6e8da9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f41d364b55d88688cd1f571ed231228.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
您最近一年使用:0次
2023-08-02更新
|
425次组卷
|
6卷引用:福建省福州市福清市高中联合体2022-2023学年高一下学期期末质检数学试题
福建省福州市福清市高中联合体2022-2023学年高一下学期期末质检数学试题福建师范大学第二附属中学2023-2024学年高二上学期10月月考数学试题(已下线)专题突破卷19传统方法求夹角及距离-2(已下线)第八章 立体几何初步 单元复习提升(易错与拓展)(2)-单元速记·巧练(人教A版2019必修第二册)(已下线)重难点专题13 轻松搞定线面角问题-【帮课堂】(苏教版2019必修第二册)(已下线)专题08立体几何期末14种常考题型归类(2) -期末真题分类汇编(人教B版2019必修第四册)
4 . 如图,已知P为矩形ABCD所在平面外一点,设
,
,且PA⊥平面ABCD,
为
的中点.
(1)证明:
平面
;
(2)求EC与底面ABCD所成角的大小(结果用反三角函数值表示);
(3)求
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83a04565a8ebaa111894b724b0ba266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/3/adf08b1f-2988-4729-9969-2ebbf9f3b927.png?resizew=177)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa69a2247ad4d5231aa361349b12f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
(2)求EC与底面ABCD所成角的大小(结果用反三角函数值表示);
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
5 . 如图,平面ABCD外一点P,
,
,
,
,
,
,
.
(2)证明:
平面
;
(3)求
与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87830eb5bc4f4f02e706b1557173a2d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c2753753faf2cb9a0003aa8e3945159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4836945f324c29ef818b423bcc017a93.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689c065652544780be8b33ae92cbb6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次
2023-08-01更新
|
1010次组卷
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3卷引用:上海市奉贤区致远高级中学2022-2023学年高一下学期期末数学试题
上海市奉贤区致远高级中学2022-2023学年高一下学期期末数学试题(已下线)重难点专题13 轻松搞定线面角问题-【帮课堂】(苏教版2019必修第二册)专题05 空间直线与平面-《期末真题分类汇编》(上海专用)
6 . 如图1,在等腰直角
中,
,
,
分别是
,
的中点,
为线段
上一点(不含端点),将
沿
翻折到
的位置,连接
,
,得到四棱锥
,如图2所示,且
.
平面
;
(2)若直线
与平面
所成角的正切值为
,求二面角
的平面角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350d9f16e66c2bf7e8e3c7dd6418e639.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa2a83fed9bf4cb09d84a980452e346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db2b1c641b93caae9b7a82441e4ba70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f7be7700b3b4177237b841636ccc5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047da2786ecd6c3b0248908e72593c66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce1b066f8869d0ff4513f7a99745125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83303d3784492506fc44f2b4d6b07bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e18b48c0263fbc4cbf072b7662589e2.png)
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2023-07-29更新
|
473次组卷
|
3卷引用:辽宁省部分学校2022-2023学年高一下学期期末联考数学试题
辽宁省部分学校2022-2023学年高一下学期期末联考数学试题第10章 空间直线与平面 单元综合检测(难点)-2023-2024学年高二数学同步精品课堂(沪教版2020必修第三册)(已下线)高一下学期期末复习解答题压轴题二十四大题型专练(2)-举一反三系列(人教A版2019必修第二册)
名校
7 . 如图,在直三棱柱
中,
为
的中点,
为
上的动点,
在
上,且满足
.现延长
至
点,使得
.
(1)若二面角
的平面角为
,求
的长;
(2)若三棱锥
的体积为
,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/86447b2db1f3a3e9542f9f24a8101ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f89023a3d792bf12722c3d7b6cc6a37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f0bd96baea7a7e553237ad8c3a5032.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/31/f8bad29e-13e9-4f66-8e1b-320802ed58e9.png?resizew=165)
(1)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d9f756419912dd298a0d6857130c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
(2)若三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次
2023-07-27更新
|
931次组卷
|
5卷引用:江西省南昌市等5地2022-2023学年高一下学期期末联考数学试题
江西省南昌市等5地2022-2023学年高一下学期期末联考数学试题辽宁省鞍山市台安县高级中学2022-2023学年高一下学期期末数学试题山西省太原师范学院附属中学(太原市师苑中学校)2023-2024学年高二上学期开学分班测评数学试题辽宁省抚顺德才高级中学2023-2024学年高二上学期期初考试数学(北大班)试题(已下线)第八章 立体几何初步(压轴题专练)-单元速记·巧练(人教A版2019必修第二册)
8 . 如图,在三棱柱
中,
,点
为棱
的中点,点
是线段
上的一动点,
.
(1)证明:
;
(2)设直线
与平面
所成角为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27874e05fadb2d7857743f37fe4dfac4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecdd047444acf462f171e840b263190c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/30/b92318e3-0250-4a0f-bfdd-28f0498bcc3f.png?resizew=191)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9630289cb39f865fc40e47c65383e784.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b1ec05e3cec27677ded7b4aecaa62d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f96c673a2381f118ea2d3efc0bca1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7d5ef3a3d9a03be91135fc426d57cc.png)
您最近一年使用:0次
解题方法
9 . 如图,四棱锥
的侧面PAD是边长为2的正三角形,底面ABCD为正方形,且平面
平面ABCD,Q,M,N分别为PB,AB,AD的中点.
(1)证明:
平面PDC;
(2)证明:
;
(3)求直线PM与平面PNC所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/28/d0be1b51-05dd-421a-99ed-23d077eb60f2.png?resizew=168)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/195dab39a4be8d9c1255dfad3cbb7b07.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/014c4c0d6c8e50e5c6c83e857f9ecac7.png)
(3)求直线PM与平面PNC所成角的正弦值.
您最近一年使用:0次
名校
解题方法
10 . 如图,在三棱柱
中,底面是边长为2的正三角形,
,平行于
和
的平面分别与
交于
四点.
的形状,并说明理由;
(2)若
是
的中点,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/d99ac9a58fbe5310fd091356c9b29078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5977e89d4dae9d1216d8bda03c60f757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a898391acfefad6656a81913f51d0255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2257da1e2425f2ea9ac7440f52659ff.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/645b45818c7a7c68a772a30262277c8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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2023-07-19更新
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4卷引用:浙江省舟山市2022-2023学年高二下学期期末数学试题
浙江省舟山市2022-2023学年高二下学期期末数学试题(已下线)专题03 空间向量的应用压轴题(5类题型+过关检测)-【常考压轴题】2023-2024学年高二数学上学期压轴题攻略(人教A版2019选择性必修第一册)(已下线)第二章 立体几何中的计算 专题一 空间角 微点5 直线与平面所成角综合训练【基础版】浙江省温州中学2023-2024学年高一下学期期中考试数学试题