如图,底面ABCD是边长为1的菱形,
,
底面ABCD,
,M为OA的中点,N为BC的中点.
平面OCD;
(2)求异面直线AB与MD所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffa995ac1b73394a4cecf085527f5e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4317430d5a2b61d9a2a88b73e7d7ad39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9774f83067ed956a551bc41adcce0469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c27c571b6e58372ea55987e99825f6a4.png)
(2)求异面直线AB与MD所成角的大小.
21-22高二·全国·课后作业 查看更多[4]
沪教版(2020) 必修第三册 新课改一课一练 第10章 10.4.1 平面与平面平行上海市嘉定区封浜高级中学2022-2023学年高二上学期9月月考数学试题内蒙古海拉尔第一中学2022-2023学年高二上学期期中考试数学试题(宏志班)(已下线)期中真题必刷压轴60题(18个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)
更新时间:2022-04-28 15:06:03
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【推荐1】如图,在正方体
中,点
,
分别在
,
上,且
,
,求
与
所成的角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c1dd5a3f83a7455eb3630364397accc.png)
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【推荐2】如图,在直三棱柱
中,底面
为等腰直角三角形,
,
,
,
是侧棱
上一点,设
.
![](https://img.xkw.com/dksih/QBM/2021/11/16/2852650345037824/2854469802041344/STEM/af56b6d5-6288-4888-b456-66ca73f49f9e.png?resizew=207)
(1)若
,求异面直线
与
所成角的大小;
(2)若
,求直线
与平面
所成角的大小;
(3)若
,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72d4b759e341f967a93fc478e795b72f.png)
![](https://img.xkw.com/dksih/QBM/2021/11/16/2852650345037824/2854469802041344/STEM/af56b6d5-6288-4888-b456-66ca73f49f9e.png?resizew=207)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa575d601b92968dfcff972dfa111e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e753dc81ed21f878fff89e98cccf24a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7d857811cbd619f868d951aa7a0ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653ada76ba0c8afe9d57c8e7832c6ed.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db8814b2124793c2bdf3ea701fb14ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
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解答题-证明题
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适中
(0.65)
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解题方法
【推荐1】如图,在三棱柱
中,侧棱
底面
,
,
,
,
,点
是
的中点.
![](https://img.xkw.com/dksih/QBM/2018/1/14/1860313321455616/1862223197413376/STEM/27112ae1c4b7426289f0abfb80f3f846.png?resizew=162)
(1)求证:
平面
;
(2)求证:
;
(3)求直线
与平面
所成的角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede6a60cad0e0b58e1549fda6e085719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/326a3339175592bd1e793a9054d57fe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ac5e13622afab5e9f8603afe42356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c98f0db1041fa3f958e44c09a5483f19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cff41783418c5e11f70c71ee2e137566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b36a1938df65db2b68bf7595b97bafa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c47b3e7435856bedf495e1e859be631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://img.xkw.com/dksih/QBM/2018/1/14/1860313321455616/1862223197413376/STEM/27112ae1c4b7426289f0abfb80f3f846.png?resizew=162)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d97017b761b997f19b767a1c0ccaa3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f060c3a6c2ed838094d8506a530180d4.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff7bfc8835890dcc9c5bd278a0cb707.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc65c549059934e69355d8ecc245da57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d5a373112efbf36f1989234a4c19aa.png)
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【推荐2】如图,四棱锥
中,
平面
,
,
,
,
,E,F分别为
的中点.
平面
;
(2)求点B到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)求点B到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149596fee6ed1e2d19fd8dadc14a8baf.png)
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【推荐3】如图,在四棱锥P﹣ABCD中,PA⊥平面ABCD,AB⊥AD,BC//AD,AD=2BC=2PA=2AB=2,E,F,G分别为线段AD,DC,PB的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/5d47b544-08af-4e92-b8f0-515826b23f93.png?resizew=159)
(1)证明:直线PF//平面ACG;
(2)求直线PD与平面ACG所成角的正弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/5d47b544-08af-4e92-b8f0-515826b23f93.png?resizew=159)
(1)证明:直线PF//平面ACG;
(2)求直线PD与平面ACG所成角的正弦值.
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【推荐1】如图,在直三棱柱
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/307298a6-97ed-487d-ac51-59f2f1677595.png?resizew=142)
(1)证明:
;
(2)若三棱锥
的体积为
,求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0af405392c66b86550a58f1cb9868717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/307298a6-97ed-487d-ac51-59f2f1677595.png?resizew=142)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e5dc81fbafbe58bff0842f7776d80a.png)
(2)若三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c8896fdc11b62ba3966acbf4f06375.png)
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【推荐2】如图,直三棱柱
内接于圆柱,
,平面
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/29/09cde27b-1dd1-4fdb-bc33-d9a07f7a09d9.png?resizew=159)
(1)证明:
是圆柱下底面的直径;
(2)若
为
中点,
为
中点,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/586d9019c7337c57068eea0e5be42819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21dee56b9f36ba8f76fe67b76383636b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/29/09cde27b-1dd1-4fdb-bc33-d9a07f7a09d9.png?resizew=159)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212a67f115d1cbe69f100b489babe5f8.png)
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