名校
1 . 如图,四边形
为正方形,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2020/6/22/2490375670521856/2491022464049152/STEM/bd75970ee63f4c02b39181259b3701fe.png?resizew=137)
(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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02450b3417002395524dea35899a97ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9e5f1cfea3643c30c21732073a11ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca7f2c76e2d7aafeafbba1f7d740850e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7809a0611650cea73b90fc526018935.png)
![](https://img.xkw.com/dksih/QBM/2020/6/22/2490375670521856/2491022464049152/STEM/bd75970ee63f4c02b39181259b3701fe.png?resizew=137)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45fbffb9e2c7fa7c5006cde8da0cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab5f236e0c248607721ff77b6ea8b6ee.png)
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2020-06-23更新
|
558次组卷
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6卷引用:北京市丰台区2020届高三下学期综合练习(二)(二模)数学试题
名校
解题方法
2 . 已知正三棱柱
的所有棱长都相等,则
与平面
所成角的余弦值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
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2020-06-04更新
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754次组卷
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7卷引用:人教A版(2019) 选择性必修第一册 必杀技 第一章 空间向量与立体几何 1.4 空间向量的应用 1.4.2 用空间向量研究距离、夹角问题 课时2 用空间向量研究夹角问题
人教A版(2019) 选择性必修第一册 必杀技 第一章 空间向量与立体几何 1.4 空间向量的应用 1.4.2 用空间向量研究距离、夹角问题 课时2 用空间向量研究夹角问题人教B版(2019) 选择性必修第一册 必杀技 第一章 空间向量与立体几何 1.2 空间向量在立体几何中的应用 1.2.3 直线与平面的夹角四川省宜宾市叙州区第二中学校2019-2020学年高二下学期期中考试数学(文)试题江苏省扬州市新华中学2020-2021学年高二上学期10月阶段性测试数学试题北师大版(2019) 选修第一册 必杀技 第三章 4.3 课时1 用空间向量研究夹角问题(已下线)1.4.2 用空间向量研究距离、夹角问题【第一练】黑龙江省哈尔滨市第一六二中学2021-2022学年高二上学期期末考试数学(理)试题
3 . 已知三棱柱
的六个顶点都在球
的球面上,球
的表面积为
,
平面
,
,
,
,则直线
与平面
所成角的正弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0756ccd0d891087ebc3a0ffa058cde23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addb8e20db1fbb40f17dea52f951b907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b7903de4be7d5dc1175cfbf6e8da9f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2020-05-09更新
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194次组卷
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3卷引用:2019届全国100所名校高三下学期最新高考模拟示范卷数学卷(六)理科试题
4 . 已知平行四边形
中
,
,平面
平面
,三角形
为等边三角形,
,
.
,
分别为线段
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/2a6fbc0d-8524-4baa-b380-7ab08c5f9464.png?resizew=271)
(1)求证:平面
平面
;
(2)求证:平面
平面
;
(3)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/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80f51c31583fea58fde645474d60b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec43f7352b3a8c194b4c37485fb4ffd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a9b32570d553161be04d13954e92a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41d3f7d55fcbaebc4e2450ac63a3dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4901a7eda97d6a307db76c4fb196ba3d.png)
![](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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/2a6fbc0d-8524-4baa-b380-7ab08c5f9464.png?resizew=271)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea0d020a24cd4b60f858f3ff09da3bdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f3e3f310f6ec3f3a26498e7ee17a00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
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2020-05-09更新
|
404次组卷
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2卷引用:2019届天津市河西区高三高考三模数学(文)试题
名校
解题方法
5 . 在四面体
中,
,
,
两两垂直,
,
、
分别为棱
、
的中点,则直线
与平面
所成角的余弦值( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831d40ae84e37a5939ccd15187d5e2a2.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-04-26更新
|
389次组卷
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4卷引用:四川省绵阳南山中学2019-2020学年高二4月月考(学情调研)数学(理)试题
四川省绵阳南山中学2019-2020学年高二4月月考(学情调研)数学(理)试题四川省宜宾市叙州区第一中学校2019-2020学年高二下学期第四学月考试数学(理)试题(已下线)1.4.3 运用立体几何中的向量方法解决距离与角度问题-2020-2021学年高二数学课时同步练(人教A版选择性必修第一册)陕西省渭南市富平县2020-2021学年高二上学期期末理科数学试题
2020高三·全国·专题练习
解题方法
6 . 把正方形
沿对角线
折成直二面角
,则下列四个结论中正确的结论是
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/433190be-5ffe-4842-9841-f77bb7508301.png?resizew=148)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1854ba6cc92481d7a616bd2788a47e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/433190be-5ffe-4842-9841-f77bb7508301.png?resizew=148)
A.![]() | B.![]() |
C.![]() ![]() ![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
7 . 如图,点
为边长为
的正方形
的中心,
为正三角形,平面
平面
,
是线段
的中点,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/f84c9656-0b0b-4d31-8a10-c0f89f7a15bc.png?resizew=161)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990b4e6a33c821c298dec22cf9fbf76e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa7fb4bb4caccf79639a126064771da5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/f84c9656-0b0b-4d31-8a10-c0f89f7a15bc.png?resizew=161)
A.直线![]() ![]() |
B.![]() |
C.直线![]() ![]() ![]() |
D.三棱锥![]() ![]() |
您最近一年使用:0次
名校
8 . 在《九章算术》中,将四个面都是直角三角形的四面体称为鳖臑.如图,在鳖臑
中,
平面
,且
,则直线
与平面
所成角的正切值是( )
![](https://img.xkw.com/dksih/QBM/2020/4/10/2438659280478208/2438712440676352/STEM/4977bec2-bdbb-4bbc-bc40-ad1c797040d0.png?resizew=191)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44fafc5a1a722dc6d39cd6a825ad31bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://img.xkw.com/dksih/QBM/2020/4/10/2438659280478208/2438712440676352/STEM/4977bec2-bdbb-4bbc-bc40-ad1c797040d0.png?resizew=191)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-04-10更新
|
341次组卷
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3卷引用:【新教材精创】11.4.1直线与平面垂直(第2课时)练习(2)
(已下线)【新教材精创】11.4.1直线与平面垂直(第2课时)练习(2)2020届湘赣皖十五校高三下学期第一次联考模拟数学(文)试题安徽省阜阳市临泉第一中学(高铁分校)2022-2023学年高一下学期第三次月考数学试卷
名校
解题方法
9 . 已知四棱锥
的底面是正方形,侧棱长均相等,E是线段AB上的点(不含端点).设SE与BC所成的角为
,SE与平面ABCD所成的角为β,二面角S-AB-C的平面角为
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/17b37fb5-d320-438a-9044-ad7d92888263.png?resizew=176)
![](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/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/17b37fb5-d320-438a-9044-ad7d92888263.png?resizew=176)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-03-31更新
|
691次组卷
|
4卷引用:湖北省武汉市第二中学2018-2019学年高一下学期期末数学(理)试题
湖北省武汉市第二中学2018-2019学年高一下学期期末数学(理)试题江苏省泰州中学2019-2020学年高一下学期4月空中课堂效果检测数学试题苏教版(2019) 必修第二册 必杀技 第13章 立体几何初步 专题4 空间线、面位置关系(已下线)第31讲 立体几何中的最大角和最小角定理-2022年新高考数学二轮专题突破精练
解题方法
10 . 中国古代数学名著《九章算术·商功》中,阐述:“斜解立方,得两堵.其一为阳马,一为鳖臑.阳马居二,鳖臑居一”.若称为“阳马”的某四棱锥如图所示,
为矩形,
面
,
,
,则
与
所成的角![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
____________ ;
与平面
所成角的正弦值![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/b366eb3c3c2c1e7be9c0d52d770ee1f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218054144a13435580cd132b9459546c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/eacd33ee-7148-4fc2-b87f-30902ef7e702.png?resizew=244)
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