名校
解题方法
1 . 在四面体
中,平面
平面
,
是直角三角形,
,则二面角
的正切值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b027ed57b9c6f24e27ec0ae282c76efa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbfcae2cecc98e2d6c16dde6d3ec1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4edffabf75130171c2440357f9a4d5f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a438393ddfc7da1804baf4932442bb35.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 如图1,已知正方形
的中心为
,边长为
分别为
的中点,从中截去小正方形
,将梯形
沿
折起,使平面
平面
,得到图2.
平面
;
(2)求二面角
的平面角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd47f92c374cfcf7010ea0d421210580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/630754333e7043c573d0ecdb64cf1246.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99dcd0afaef9dc32697c8bc480b1fd1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc61a86aa346c6c4b37cf60c0ea07d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b40cbcf7b3bc282c656e1f266a12ee32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c9b06cf3913c7e81a8ea88a8836714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7e1bac4fc939a3af4dd3601617798d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bb86687f6014ddc386829090a3e7ae4.png)
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2024-04-03更新
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4卷引用:河南省青桐鸣联考2023-2024学年高二下学期3月月考数学试题
河南省青桐鸣联考2023-2024学年高二下学期3月月考数学试题河南省青桐鸣联考2023-2024学年高二下学期3月月考数学试题(北师大版)(已下线)专题20 平面与平面的位置关系-《重难点题型·高分突破》(苏教版2019必修第二册)(已下线)专题13.5空间平面与平面的位置关系-重难点突破及混淆易错规避(苏教版2019必修第二册)
名校
解题方法
3 . 已知圆锥的顶点为
,底面圆心为
,
为底面直径,
,
,点
在底面圆周上,且点
到平面
的距离为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8b3bfde4b7cbca10de7d63bb7b2cfd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
A.该圆锥的体积为![]() | B.直线![]() ![]() ![]() |
C.二面角![]() ![]() | D.直线![]() ![]() ![]() |
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名校
解题方法
4 . 已知三棱锥
,则下列论述正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
A.若点S在平面![]() ![]() ![]() |
B.若点S在平面![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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3卷引用:河南省湘豫名校2024届高三上学期12月联考数学试题
名校
5 . 如图,三棱柱
的底面是等边三角形,
,
,D,E,F分别为
,
,
的中点.
上找一点
,使
平面
,并说明理由;
(2)若平面
平面
,求平面
与平面
所成二面角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4195ed4a942092a90895d5e70e713a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9f99fb3252a4b3b7a62e8a675ddce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f60d66204e1abc17bd01749f187f8050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657dffbd3623b705f871878fbd9df57e.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce04b35c265cc9c48b60204bd2f718ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657dffbd3623b705f871878fbd9df57e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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10卷引用:河南省商丘市虞城县第一高级中学2024届高三上学期第三次月考数学试题
河南省商丘市虞城县第一高级中学2024届高三上学期第三次月考数学试题河南省漯河市2024届高三上学期期末质量监测数学试题云南省昆明市第一中学2024届高三第三次双基检测数学试题“七省联考”2024届高三考前猜想数学试题(已下线)专题09 立体几何(5大易错点分析+解题模板+举一反三+易错题通关)-2山东省济南市2023-2024学年高二上学期期末质量检测模拟数学试题江西省丰城中学2023-2024学年高二上学期1月期末数学试题(已下线)专题7.3 空间角与空间中的距离问题【九大题型】(已下线)第二章 立体几何中的计算 专题一 空间角 微点9 二面角大小的计算(四)【培优版】(已下线)信息必刷卷05(江苏专用,2024新题型)
名校
6 . 如图,正四面体ABCD的顶点A,B,C分别在两两垂直的三条射线Ox,Oy,Oz上,则下列结论错误的为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/15/9f1607e7-d5f1-4c59-94a9-dc91a0e864ab.png?resizew=142)
A.![]() |
B.直线![]() |
C.直线AD与OB所成的角是45° |
D.二面角![]() |
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6卷引用:河南省商丘市宁陵县高级中学2023-2024学年高二上学期第一次考试数学试题
7 . 如图,在四棱锥
中,平面
平面
,
,
,
,
.
(1)证明:
平面
.
(2)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17580410bf63dba4fe164265afaac4cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e73ff18fab460a2bc8d21cc522527e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292d0b9ce587bd5df884a988c22ccba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd316249a2a4333a6e37ea6ba4c0e67b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71807a35b3170fce28ee6edf4c00d083.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/19/9465d634-9cb6-4c05-9a53-12796388787b.png?resizew=174)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e384e0ffc3d599303b77ee2a12221e.png)
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2023-07-21更新
|
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2卷引用:河南省驻马店市2022-2023学年高二下学期第三次联考数学试题
8 . 如图,棱长为2的正方体
中,点
在线段
上运动,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/17/475a164d-23ab-46d7-8df2-3c12013279c6.png?resizew=172)
A.异面直线![]() ![]() ![]() |
B.二面角![]() ![]() ![]() ![]() |
C.点![]() ![]() ![]() |
D.存在一点![]() ![]() ![]() ![]() |
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2023-07-13更新
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2卷引用:河南省驻马店市2022-2023学年高一下学期期末数学试题
22-23高一下·河南南阳·期末
9 . 如图,在圆锥
中,已知
的直径
,点
是
的中点,点
为
的中点.
(1)证明:平面
平面
;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7648f049cc17a82fe816f5de3d9693c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/17/4495620e-dda7-498d-844c-204e2f4df01d.png?resizew=175)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3da05ded8b60b97142b4d975ffe782c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e67a35615a7a9b3aeb0212a62cef30.png)
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解题方法
10 . 三棱锥
中,底面
为正三角形,
平面
,
为棱
的中点,且
(
为正常数).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/6/94d7c905-655d-4532-940a-93cc7eb91911.png?resizew=153)
(1)若
,求二面角
的大小;
(2)记直线
和平面
所成角为
,试用常数
表示
的值,并求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531dd2310518f801ed6160b44d94c236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/6/94d7c905-655d-4532-940a-93cc7eb91911.png?resizew=153)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f88070c5772370fef9c16727145641d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbeab80976db9b4689b9446cda06196a.png)
(2)记直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f798a9af75a091a8be0b71f2038260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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