1 . 如图,在四棱锥
中,底面为直角梯形,
,
垂直于底面
,
,
分别为
的中点.
![](https://img.xkw.com/dksih/QBM/2020/1/6/2371472891535360/2371792347226112/STEM/09169b0c8ce549b78c8b10e324993116.png?resizew=198)
(1)求证:
四点共面,并证明
;
(2)求直线
与平面
所成角的大小.(用反三角函数值表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0b50a374d39f38a53c5d1c8ef84c43e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edf7488ccaf26541626131bceb8f1069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829a1a887ceba13dd8551b1e3604bf6f.png)
![](https://img.xkw.com/dksih/QBM/2020/1/6/2371472891535360/2371792347226112/STEM/09169b0c8ce549b78c8b10e324993116.png?resizew=198)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae2c7f1c87799a8b1ba8ab9a68ef01ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ac67c3e6c36c184fc8a3a051654f471.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4a422531ad292cf2bf33a2225f0bfb1.png)
您最近一年使用:0次
2 . 如图,底面为矩形的直棱柱
满足:
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/efa7f6f6-c144-4ce4-8c36-39dc17797db1.png?resizew=159)
(1)求直线
与平面
所成的角
的大小;
(2)设
、
分别为棱
、
上的动点,求证:三棱锥
的体积
为定值,并求出该值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/efa7f6f6-c144-4ce4-8c36-39dc17797db1.png?resizew=159)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7253ffd3fc633d861810ee2e872188b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d06d55b3b80fed8fec5fe42fa40baf6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
您最近一年使用:0次
2020-01-02更新
|
478次组卷
|
4卷引用:上海市嘉定区、长宁、金山区2019-2020学年高三上学期期末数学试题
3 . 如图,在四棱锥
中,底面ABCD是矩形,
平面ABCD,
,E是PB的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/1c4c5a93-7f67-47cb-b829-25e1130c6452.jpg?resizew=195)
(1)求异面直线EC和AD所成角的大小(结果用反三角函数值表示);
(2)求三棱锥
的体积.
![](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/6546d9c27cc1d9d5c5cbd2fc294f6b3d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/1c4c5a93-7f67-47cb-b829-25e1130c6452.jpg?resizew=195)
(1)求异面直线EC和AD所成角的大小(结果用反三角函数值表示);
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba759550d6c10ffd2922b936888f3973.png)
您最近一年使用:0次
4 . 如图,在四棱锥
中,底面
是矩形,
平面
,
、
与平面
所成的角依次是
和
,
,
,
依次是
,
上的点,其中
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/e9868b70-77e3-485e-be54-e29a45b898f9.png?resizew=159)
(1)求直线
与平面
所成的角(结果用反三角函数值表示);
(2)求三棱锥
的体积.
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71536440db7649d375d1b98c054d24d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecbb2dce15f3d0fe839688575d2a8ff8.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/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ab2742cfab7efc384743da22816afe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5928b9bea09600c0b8d5997e32e01e12.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/e9868b70-77e3-485e-be54-e29a45b898f9.png?resizew=159)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec66c1d36c6c2be3d3fc4519dfca195e.png)
您最近一年使用:0次
5 . 如图,圆锥的展开侧面图是一个半圆,
、
是底面圆
的两条互相垂直的直径,
为母线
的中点,已知过
与
的平面与圆锥侧面的交线是以
为顶点、
为对称轴的抛物线的一部分.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/f686b18d-a3cd-4e5b-83d9-9afab406aade.png?resizew=206)
(1)证明:圆锥的母线与底面所成的角为
;
(2)若圆锥的侧面积为
,求抛物线焦点到准线的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b63d2504bd3ecce8c10560b142356f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/f686b18d-a3cd-4e5b-83d9-9afab406aade.png?resizew=206)
(1)证明:圆锥的母线与底面所成的角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
(2)若圆锥的侧面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d80f16c3278cd252725625dcf253cda.png)
您最近一年使用:0次
6 . 如图,已知
是圆锥
的底面直径,
是底面圆心,
,
,
是母线
的中点,
是底面圆周上一点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/ea247f96-59aa-4712-8481-12ab30920482.png?resizew=137)
(1)求直线
与底面所成的角的大小;
(2)求异面直线
与
所成的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e5ef91fb27dd684a27ae7f1993cfba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feb3a4a1f748251e3a5232aec3f40e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79684a6e92297749c005e2b23cac9710.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/ea247f96-59aa-4712-8481-12ab30920482.png?resizew=137)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4db9b82b67efe45a02fca32bfcf5dc.png)
您最近一年使用:0次
7 . 如图,在长方体
中,
,
,
,平面
截长方体得到一个矩形
,且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/126a8fbf-6fc8-4f02-8c68-224c82fc58b1.png?resizew=168)
(1)求截面
把该长方体分成的两部分体积之比;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a317122488b47c2fb6b979984361ab50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35bf5bcb1621a5badd4f89fabbe48ab7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/126a8fbf-6fc8-4f02-8c68-224c82fc58b1.png?resizew=168)
(1)求截面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2019-12-11更新
|
386次组卷
|
3卷引用:上海市建平中学2017-2018学年高三上学期9月月考数学试题
8 . 如图,
是平面
的斜线,
为斜足
平面
,
为垂足,
是平面
上的一条直线,
于点
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/0bb035a7-25c6-44dd-b8e1-4e49cc6d77f0.png?resizew=132)
(1)求证:
平面
;
(2)求
和平面
所成的角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce03b310edce42191f9fa75a1c909ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6244ad33aac326b29e5111c97820ff6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df0c656386b2889c4556d8309508463.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/0bb035a7-25c6-44dd-b8e1-4e49cc6d77f0.png?resizew=132)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3781cfd1cef95fc1c157c9e81ddbf5e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
9 . 如图,四棱锥
的底面为菱形且∠ABC=120°,PA⊥底面ABCD,AB=1,PA=
,E为PC的中点.
![](https://img.xkw.com/dksih/QBM/2019/12/8/2350913262034944/2350983458988033/STEM/fb2edd23-59ee-4b21-b16e-40118dad56ae.png?resizew=243)
(1)求直线DE与平面PAC所成角的大小;
(2)求二面角E-AD-C平面角的正切值;
(3)在线段PC上是否存在一点M,使PC⊥平面MBD成立.如果存在,求出MC的长;如果不存在,请说明理由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://img.xkw.com/dksih/QBM/2019/12/8/2350913262034944/2350983458988033/STEM/fb2edd23-59ee-4b21-b16e-40118dad56ae.png?resizew=243)
(1)求直线DE与平面PAC所成角的大小;
(2)求二面角E-AD-C平面角的正切值;
(3)在线段PC上是否存在一点M,使PC⊥平面MBD成立.如果存在,求出MC的长;如果不存在,请说明理由
您最近一年使用:0次
2019-12-08更新
|
1978次组卷
|
3卷引用:上海市张堰中学2017-2018学年高二下学期第二次阶段测试数学试题
上海市张堰中学2017-2018学年高二下学期第二次阶段测试数学试题(已下线)第08讲 二面角(核心考点讲与练)-2022-2023学年高二数学考试满分全攻略(沪教版2020必修第三册)安徽省淮南第一中学2021-2022学年高一英创班下学期第三次段考(线上测试)数学试题
10 . 如图,已知四面体ABCD中,DA=DB=DC=
且DA、DB、DC两两互相垂直,点
是△ABC的中心.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/8079dead-9ec0-4298-9a4c-6885c1e0359d.png?resizew=161)
(1)求直线DA与平面ABC所成角的大小(用反三角函数表示);
(2)过
作OE⊥AD,垂足为E,求ΔDEO绕直线DO旋转一周所形成的几何体的体积;
(3)将△DAO绕直线DO旋转一周,则在旋转过程中,直线DA与直线BC所成角记为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/501ec4e1dd89deb30c9bfb426e4a2a59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/8079dead-9ec0-4298-9a4c-6885c1e0359d.png?resizew=161)
(1)求直线DA与平面ABC所成角的大小(用反三角函数表示);
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(3)将△DAO绕直线DO旋转一周,则在旋转过程中,直线DA与直线BC所成角记为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45b8b77522dfc890b99f0a86a690de94.png)
您最近一年使用:0次