名校
1 . 如图,在四棱锥
中,
,
,
,
,
,
,
.
平面
;
(2)求
与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689c065652544780be8b33ae92cbb6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)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
2023-05-19更新
|
3895次组卷
|
11卷引用:广西柳州地区民族高级中学2022-2023学年高一下学期期中考试数学试题
广西柳州地区民族高级中学2022-2023学年高一下学期期中考试数学试题(已下线)期末模拟卷(A卷·基础通关卷)-【单元测试】天津市第四十二中学2022-2023学年高一下学期5月月考数学试题宁夏吴忠市吴忠中学2022-2023学年高一下学期数学期末考试练习试题(已下线)第03讲 空间中平行、垂直问题10种常见考法归类(2)广东省湛江市2022-2023学年高一下学期期末数学试题内蒙古自治区巴彦淖尔市衡越实验中学2022-2023学年高一下学期期末数学试题宁夏石嘴山市平罗中学2022-2023学年高一下学期期末考试数学试题山东省烟台市爱华学校2022-2023学年高一下学期第二次月中质量检测数学试题【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(已下线)上海市高二下学期期末真题必刷03(常考题)--高二期末考点大串讲(沪教版2020选修)
名校
2 . 如图所示的几何体是圆锥的一半和一个三棱锥组成,圆锥底面圆O的半径为1,圆锥的高
,三棱锥
的底面
是以圆锥的底面圆的直径AB为斜边的等腰直角三角形,且与圆锥底面在同一个平面上.
和平面
所成角的大小;
(2)求该几何体的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae890f9e8b32aa53a54158f24f4a87bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求该几何体的表面积.
您最近一年使用:0次
2023-05-10更新
|
650次组卷
|
3卷引用:上海市浦东新区2023届高三三模数学试题
名校
3 . 如图,四边形
是圆柱的轴截面,
是母线,点D在线段BC上,直线
//平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/3c7749db-d433-4ec9-baa9-110956159ab3.png?resizew=161)
(1)记三棱锥
的体积为
,三棱锥
的体积为
,证明:
;
(2)若
,
,直线
到平面
的距离为
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b7b7793d29d66dfdd89e7a6564a35c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5888bec948373f3854258ad80171073d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/3c7749db-d433-4ec9-baa9-110956159ab3.png?resizew=161)
(1)记三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e98058f394b0d5b4d8498b2dcfa3983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4764374bd2fb78e59cd0b283637baeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42e4d3ce220fd60e952c957fb71a6d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63055a5d6916f99d07fede49120753f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e449727158281e3370255436481a848.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267880e605306851d8f46be77b11f9c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4b6c682d7b0741fb1f12a073394fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5888bec948373f3854258ad80171073d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d599cb4a589f90b0205f24c2e1fa021e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5888bec948373f3854258ad80171073d.png)
您最近一年使用:0次
2023-05-05更新
|
1273次组卷
|
2卷引用:福建省福州市2023届高三质量检测数学试题
名校
4 . 如图,在三棱柱
中,
是边长为2的等边三角形,
,平面
平面ABC.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/17/559f3292-9480-4bf7-b09b-2c7da36aba40.png?resizew=218)
(1)证明:
;
(2)若E为
的中点,直线
与平面
所成的角为45°,求直线
与平面
所成的角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252143a7b900d33862f60b2536f6a8ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0671b4776e142e17a79af5b3f0378ef7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/17/559f3292-9480-4bf7-b09b-2c7da36aba40.png?resizew=218)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/696da912e610974f0f437876b3d34ee3.png)
(2)若E为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1859959fdb4c5edd8056893f94a10a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69bcb3226e013650b7d8827c31dd41d0.png)
您最近一年使用:0次
2023-04-16更新
|
1671次组卷
|
5卷引用:河南省十所名校2022-2023学年高中毕业班阶段性测试(六)理科数学试题
5 . 如图,在四棱锥
中,
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/14/f8e34830-3e17-4bbe-b057-6a90c440da6e.png?resizew=163)
(1)证明:平面
平面
;
(2)若
,
,且四棱锥
的体积为
,求
与平面
所成的线面角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d89a4e5c5d9453a94a31ae6a33d1f153.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/14/f8e34830-3e17-4bbe-b057-6a90c440da6e.png?resizew=163)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/652e17c25238a446ab3e6b0b3e4efeab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f67538eedbdf54a1bcaff4394230e81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a391005600bdd69c96750589f9adb048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2023-04-13更新
|
2973次组卷
|
8卷引用:上海市奉贤区2023届高三二模数学试题
名校
6 . 已知平行六面体
中,
,
,
,侧面
是菱形,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/31/106c8e9e-43d2-4d7c-a45d-28daf1c3cdc8.png?resizew=243)
(1)求
与底面
所成角的正切值;
(2)点
分别在
和
上,
,过点
的平面与
交于G点,确定G点位置,使得平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e389465b16f6eccac51a409b423788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5a86745bfe1dfe7bc2683811210330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d04812fd787f9677100063fcdbd3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abbb4afeaca62289bbd780e672d29868.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/31/106c8e9e-43d2-4d7c-a45d-28daf1c3cdc8.png?resizew=243)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa6cb992b6faad4744f85d73a3b76dd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3644b41d90f07e68d553fe37406baaa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ca382790c69e17b81574b8c2ac2f99d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cdc08e1c4a04a18d5ecea03393e36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51838e395dfc9d9ef597d9e01f46272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee05bbf56310e0e277ec7e71c5079e8a.png)
您最近一年使用:0次
2023-03-31更新
|
1691次组卷
|
4卷引用:华大新高考联盟2023届高三下学期3月教学质量测评数学试题
7 . 如图,正方形
中,
分别是
的中点,将
分别沿
折起,使
两点重合于点
,过
作
,垂足为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/18/928d3da2-1bfb-4042-bb41-e73c88fc6ce9.png?resizew=324)
(1)证明:
平面
;
(2)求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d4d5391fc7b4cd21e9e29e56ded358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c818110255bdad691f61be6461a6fd73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098a3e7d1f1890863b7483a98b618119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294e920268f22ddb77c914f113951225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/18/928d3da2-1bfb-4042-bb41-e73c88fc6ce9.png?resizew=324)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17622ea6f6f5afd1ad817a557e5889d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87e1fe20bb0e8292e993657e14bc79a.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/425bb0d1c21eb4448dbbe9a41efa7538.png)
您最近一年使用:0次
2023高一·全国·专题练习
解题方法
8 . 如图,
是圆柱
的一条母线,
是底面的一条直径,
是圆
上一点,且
,
.
![](https://img.xkw.com/dksih/QBM/2023/3/9/3190862963081216/3192189200056320/STEM/3e86c827d44c4e9dbe3a98b3dd40a4d1.png?resizew=132)
(1)求直线
与平面
所成角正弦值;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59fe75f967e8915c9124a5d4ac420a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c24a968c73e960698a572ab01e3698.png)
![](https://img.xkw.com/dksih/QBM/2023/3/9/3190862963081216/3192189200056320/STEM/3e86c827d44c4e9dbe3a98b3dd40a4d1.png?resizew=132)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
您最近一年使用:0次
2023-03-11更新
|
1301次组卷
|
10卷引用:第八章立体几何初步(基础检测卷)
(已下线)第八章立体几何初步(基础检测卷)第八章立体几何初步章节验收测评卷-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)2023年新高考数学终极押题卷(已下线)专题10 空间角与空间距离的综合(2) - 期中期末考点大串讲(已下线)专题强化二:异面角、线面角、二面角的常见解法 (2)湖南省株洲市炎陵县2022-2023学年高一下学期6月期末数学试题吉林省辽源市田家炳高级中学校友好学校2022-2023学年高一下学期期末联考数学试题河北省高碑店市崇德实验中学2022-2023学年高一下学期期末数学试题(已下线)核心考点08空间直线、平面的垂直-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)上海市三林中学东校2023-2024学年高二上学期12月阶段性测试数学试题
名校
9 . 如图,已知直三棱柱
中,
且
,
、
、
分别为
、
、
的中点,
为线段
上一动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/12/d7a4e86e-30b3-4222-90eb-8c718300db26.png?resizew=158)
(1)求
与平面
所成角的正切值;
(2)证明:
;
(3)求锐二面角
的余弦值的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a9ad711b25c36dae0c2a2cedff9954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b51da47ab8433342f7a319e412fefae.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1859959fdb4c5edd8056893f94a10a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/12/d7a4e86e-30b3-4222-90eb-8c718300db26.png?resizew=158)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/456175ea34492f0bc025aaab668fa659.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8b1a2760333f3d6f6d456881115498.png)
(3)求锐二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d9892555bfe67259e3e5a1fff78976.png)
您最近一年使用:0次
2023-03-11更新
|
470次组卷
|
3卷引用:上海市徐汇区2022-2023学年高二下学期3月月考数学试题
10 . 如图1,在长方形ABCD中,已知
,
,E为CD中点,F为线段EC上(端点E,C除外)的动点,过点D作AF的垂线分别交AF,AB于O,K两点.现将
折起,使得
(如图2).
平面
;
(2)求直线DF与平面
所成角的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/592849d99e570c23906687097b1072ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5031363bc487f62b2ae5fdf2c07b8e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf6dc837ae85207789b94d109c5c2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求直线DF与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次