1 . 已知平面
,过空间一定点P作一直线l,使得直线l与平面
,
所成的角都是30°,则这样的直线l有______ 条.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
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|
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2卷引用:浙江省杭州市2021-2022学年高二下学期2月月考数学试题
名校
2 . 如图,在四棱锥
中,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
.
![](https://img.xkw.com/dksih/QBM/2022/1/22/2900129606516736/2903690423599104/STEM/e855fe31-f188-457e-9dcb-8265b723a3af.png?resizew=200)
(1)证明:
平面
;
(2)在线段
上是否存在一点
,使直线
与平面
所成角的正弦值等于
?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a97186359ccaf3e110a9c0195c4dac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/464c079d3fb0312aac21fa6fa5140414.png)
![](https://img.xkw.com/dksih/QBM/2022/1/22/2900129606516736/2903690423599104/STEM/e855fe31-f188-457e-9dcb-8265b723a3af.png?resizew=200)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd92f594c348f7a956607f7b381cc22a.png)
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|
1094次组卷
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5卷引用:浙江省山河联盟2021-2022学年高二下学期3月联考数学试题
浙江省山河联盟2021-2022学年高二下学期3月联考数学试题浙江省杭州学军中学2021-2022学年高二上学期期末数学试题云南省昭通市下关一中、昭通一中2021-2022学年高二下学期见面考(开学考试)数学试题(已下线)江苏省苏锡常镇四市2023届高三下学期3月教学情况调研(一)数学试题变式题17-22陕西省西安市铁一中学2022-2023学年高一下学期期末数学试题
3 . 如图,四棱锥
中,
平面
,底面
是正方形,
,
为
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/7bd48798-c1db-4297-ad0e-b5095315a2e6.png?resizew=215)
(1)求证:
平面BDE;
(2)求直线AE与平面ABCD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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99926bf272cd757f0985c69b390ebcce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/7bd48798-c1db-4297-ad0e-b5095315a2e6.png?resizew=215)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8c2b786c64e6a9ed2ec5670cde74f86.png)
(2)求直线AE与平面ABCD所成角的正弦值.
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2021-11-03更新
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378次组卷
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2卷引用:浙江省杭州市桐庐中学2021-2022学年高二上学期10月阶段性测试数学试题
名校
4 . 如图(1)是一副直角三角板.现将两个三角板沿它们的公共边翻折成图(2)的四面体
,设
,
与面
所成角分别为
,
,在翻折的过程中,下列叙述正确的是( )
![](https://img.xkw.com/dksih/QBM/2021/10/9/2825575199817728/2828531898515456/STEM/5730fc01a7a04cdd91a591de1cd31992.png?resizew=541)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://img.xkw.com/dksih/QBM/2021/10/9/2825575199817728/2828531898515456/STEM/5730fc01a7a04cdd91a591de1cd31992.png?resizew=541)
A.存在某个位置使得![]() |
B.若![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.异面直线![]() ![]() ![]() |
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5卷引用:浙江省精诚联盟2021-2022学年高二上学期10月联考数学试题
解题方法
5 . 如图,在正方体
中,
与平面
所成的角为
,
与
所成的角为
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/bf60427f-01a8-484e-b7ae-01ca83589c1b.png?resizew=170)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cdc08e1c4a04a18d5ecea03393e36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cdc08e1c4a04a18d5ecea03393e36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c634aa65493615fbb40f1352a88c5aa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/bf60427f-01a8-484e-b7ae-01ca83589c1b.png?resizew=170)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4卷引用:浙江省杭州市富阳区实验中学2021-2022学年高二下学期3月月考数学试题
浙江省杭州市富阳区实验中学2021-2022学年高二下学期3月月考数学试题(已下线)考点32 直线、平面垂直的判定及其性质-备战2022年高考数学一轮复习考点帮(浙江专用)山东省枣庄市2020-2021学年高一下学期期末数学试题(已下线)第九章 立体几何专练8—线面角小题2-2022届高三数学一轮复习
20-21高一下·浙江·期末
名校
6 . 如图,在四棱锥
中,
为正三角形,底面
为直角梯形,
,
,
,点
分别在线段
和
上,且
.
(1)求证:
平面
;
(2)设二面角
大小为
,若
,求直线
和平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4795ee1f96b430529934e2231b38885d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf2760931f4ed8f9fe0c87925c6b09c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c4e32e152097c2dfad9769da74680b6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/5/f14f9c8a-04b8-4a05-8b73-a093eb6cffcf.png?resizew=193)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6df63f3acea256c6518ea0bb07be17e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfaf581b4f42a25087f7eee23a7d66b6.png)
(2)设二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b796bbaeb8450404c2d146283562006e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0ac75c15c00a048e6f7afc8e696f57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
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2021-06-11更新
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3524次组卷
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7卷引用:浙江省南太湖联盟2022-2023学年高二上学期9月联考数学试题
浙江省南太湖联盟2022-2023学年高二上学期9月联考数学试题(已下线)【新东方】在线数学170高一下贵州省铜仁第一中学2023-2024学年高二上学期8月摸底衔接质量检测(三)数学试题湖南省长沙市长郡中学2020-2021学年高一下学期期末数学试题(已下线)一轮复习大题专练51—立体几何(线面角3)—2022届高三数学一轮复习(已下线)专题8.18 立体几何初步全章综合测试卷(提高篇)-2022-2023学年高一数学举一反三系列(人教A版2019必修第二册)(已下线)第10讲空间直线、平面的平行(核心考点讲与练)-2021-2022学年高一数学考试满分全攻略(人教A版2019必修第二册)(原卷版)
名校
7 . 如图所示,已知平行四边形
和矩形
所在平面互相垂直,
,
,
,
,
是线段
的中点.
![](https://img.xkw.com/dksih/QBM/2021/2/25/2665748692049920/2669084851519488/STEM/5201c1b0-924e-4afc-86d3-bb6a1d83bec6.png)
(1)求证:
;
(2)求直线
与平面
所成角的余弦值;
(3)设点
为一动点,若点
从
出发,沿棱按照
的路线运动到点
,求这一过程中形成的三棱锥
的体积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4b93d7abcfc4c3df48f03aa969c17f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c161375e4e6f61f1cbef8083c02e975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0cee0f36dc452e58086832c0152b641.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/2021/2/25/2665748692049920/2669084851519488/STEM/5201c1b0-924e-4afc-86d3-bb6a1d83bec6.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b87b3be10408261827291574434d8e.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
(3)设点
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7d0f06dc829e758727c532c608200f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d68be8df235af30390bc3d7b8195e2.png)
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2021-03-02更新
|
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3卷引用:浙江省丽水市高中发展共同体2020-2021学年高二下学期2月第一次联合测试数学试题
解题方法
8 . 正四棱锥
中,侧棱与底面所成的角为
,侧面与底面所成的角为
,侧面等腰三角形的底角为
,相邻两侧面所成的二面角为
,则
、
、
、
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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|
315次组卷
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3卷引用:浙江省丽水市高中发展共同体2020-2021学年高二下学期2月第一次联合测试数学试题
浙江省丽水市高中发展共同体2020-2021学年高二下学期2月第一次联合测试数学试题沪教版(2020) 必修第三册 达标检测 期中测试(已下线)第二章 立体几何中的计算 专题一 空间角 微点12 三正弦定理与三余弦定理(二)【培优版】
名校
9 . 如图,在四棱锥
中,
是等边三角形,
平面
且
为
中点.
![](https://img.xkw.com/dksih/QBM/2021/2/22/2663757255909376/2664796301451264/STEM/3ae447b9-e186-427d-9f0a-6e68dd96f0c1.png)
(1)求证:
平面
;
(2)求直线
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/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a0787d2cb66d00c49d3348b52acd407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd8ea177384430808067769d5ebbbb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613354053d19e4919e68e30a224c6f3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/2021/2/22/2663757255909376/2664796301451264/STEM/3ae447b9-e186-427d-9f0a-6e68dd96f0c1.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f44f2b2f82a9126223138972850aa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218054144a13435580cd132b9459546c.png)
您最近一年使用:0次
2021-02-24更新
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7卷引用:浙江省金华第一中学2022-2023学年高二上学期12月阶段性测试数学试题
浙江省金华第一中学2022-2023学年高二上学期12月阶段性测试数学试题浙江省绍兴市上虞区2020-2021学年高二上学期期末数学试题(已下线)【新东方】绍兴数学高二上【00002】浙江省嘉兴市第五高级中学2021-2022学年高二下学期期中数学试题(已下线)专题8.6 第八章《立体几何初步》单元测试(B卷提升篇)-2020-2021学年高一数学必修第二册同步单元AB卷(新教材人教A版,浙江专用)广东省深圳市南方科技大学附属中学2020-2021学年高一下学期期中数学试题(已下线)第八章 立体几何初步 章末测试(基础)-2021-2022学年高一数学一隅三反系列(人教A版2019必修第二册)
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解题方法
10 . 如图,在正方体
中,点O为线段BD的中点.设点
在线段
上,直线
与平面
所成的角为
,则
的取值范围是( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
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A.![]() | B.![]() |
C.![]() | D.![]() |
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7卷引用:浙江省杭州市桐庐中学2021-2022学年高二上学期12月阶段性测试数学试题