1 . 如图,某圆锥的顶点为
,底面圆的圆心为
,
与
为底面圆的两条互相垂直的直径,
为母线
的中点,且
,
,则异面直线
与
所成角的正切值为( )
![](https://img.xkw.com/dksih/QBM/2021/1/8/2631832881381376/2639670784704512/STEM/e8102679947d440fa32be1620a6633e1.png?resizew=182)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b72d83915b41102495fcff91dbdbb0b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef2010b44225d512da35649f01a95e71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://img.xkw.com/dksih/QBM/2021/1/8/2631832881381376/2639670784704512/STEM/e8102679947d440fa32be1620a6633e1.png?resizew=182)
A.![]() | B.![]() | C.![]() | D.![]() |
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3卷引用:江西省抚州市2020-2021学年度高二上学期期末(B卷)数学(文)试题
2 . 已知正方体
,
是
的中点,则异面直线
与
所成角的余弦值为( )
![](https://img.xkw.com/dksih/QBM/2021/1/26/2644543612968960/2644639562276864/STEM/c4c7195bcc99449f989a3920ded4e608.png?resizew=205)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://img.xkw.com/dksih/QBM/2021/1/26/2644543612968960/2644639562276864/STEM/c4c7195bcc99449f989a3920ded4e608.png?resizew=205)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 已知正方体
中,点
,
分别是线段
,
的中点,则异面直线
与
所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.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/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408871c2b71ef88d6f556ce53cf73cc9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 如图,已知在四棱锥
中,底面
是正方形,
为等边三角形,
为
的中点,
为
的中点,
为底面的中心.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/20abf493-9615-4a88-a187-f5736d3d8124.png?resizew=218)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
平面
.
(2)求证:平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192eca994811b4830be330ad8206c93f.png)
平面
.
(3)求异面直线
与
所成角.
![](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/f9026fbd7897d459b4d559a4b99f2e41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/20abf493-9615-4a88-a187-f5736d3d8124.png?resizew=218)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65277734669566578cbb7d690bb200fb.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192eca994811b4830be330ad8206c93f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(3)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
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解题方法
5 . 如图,正四棱锥
,
,
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/2021/1/4/2628736982466560/2632370452676608/STEM/607abdb8-5c15-425f-a7f3-1bde56854b29.png?resizew=307)
(1)求证:
平面
;
(2)求异面直线
与
所成夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a0b15556a1584c1b6b2768bbc9cbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://img.xkw.com/dksih/QBM/2021/1/4/2628736982466560/2632370452676608/STEM/607abdb8-5c15-425f-a7f3-1bde56854b29.png?resizew=307)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1ea0adc03fc8ba355dbdac586f4b707.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defa5b53043ae802bb1af7d14374406d.png)
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6 . 矩形ABCD中,AB=4,AD=2,点E为CD中点,沿AE把△ADE折起,点D到达点P,使得平面PAE⊥平面ABCE,则异面直线AB与PC所成角的余弦值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/b016cae9-ff8d-4259-adb2-49e991bb9730.png?resizew=327)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/b016cae9-ff8d-4259-adb2-49e991bb9730.png?resizew=327)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-01-03更新
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261次组卷
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6卷引用:江西省奉新县第一中学2021届高三上学期第五次月考数学(理)试题
江西省奉新县第一中学2021届高三上学期第五次月考数学(理)试题江西省抚州市南城一中2020--2021学年高二下学期期中联考数学(文)试题百校联盟2020-2021学年普通高中教育教学质量监测考试(全国卷12月)理科数学试题百校联盟2020-2021学年普通高中教育教学质量监测考试12月全国卷文科数学试题(已下线)2021年秋季高三数学(文)开学摸底考试卷02(已下线)2021年秋季高三数学(理)开学摸底考试卷02
名校
7 . 如图,已知正方体ABCD
A′B′C′D.
![](https://img.xkw.com/dksih/QBM/2020/12/29/2624712124694528/2627426834333696/STEM/8fe8fe52-cc2b-4176-9595-fd0c4e16cc5b.png?resizew=277)
(1)直线BA′和CC′的夹角是多少?
(2)哪些棱所在的直线与直线AA′垂直?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b700fa9aeb1016aa71f76e4b6bb212e.png)
![](https://img.xkw.com/dksih/QBM/2020/12/29/2624712124694528/2627426834333696/STEM/8fe8fe52-cc2b-4176-9595-fd0c4e16cc5b.png?resizew=277)
(1)直线BA′和CC′的夹角是多少?
(2)哪些棱所在的直线与直线AA′垂直?
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8 . 在长方体ABCD-A1B1C1D1中,AB=2,BC=B1B=1,M、N分别是AD、DC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/31cbaf09-a566-46df-8eb2-1530459a10e7.png?resizew=176)
(1)求证:M、N、A1、C1共面;
(2)求:异面直线MN与BC1所成角的余弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/31cbaf09-a566-46df-8eb2-1530459a10e7.png?resizew=176)
(1)求证:M、N、A1、C1共面;
(2)求:异面直线MN与BC1所成角的余弦值.
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2021-01-02更新
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3卷引用:江西省南昌县莲塘第三中学2020-2021学年高二上学期第二次月考数学试题
江西省南昌县莲塘第三中学2020-2021学年高二上学期第二次月考数学试题上海市奉贤区致远高级中学2021-2022学年高二上学期10月评估数学试题(已下线)10.2 两条异面直线所成的角(第3课时)
名校
解题方法
9 . “阿基米德多面体”也称为半正多面体,是由边数不全相同的正多边形为面围成的多面体,它体现了数学的对称美如图.将正方体沿交于一顶点的三条棱的中点截去一个三棱锥,共可截去八个三棱锥,得到八个面为正三角形,六个面为正方形的“阿基米德多面体”,则异面直线AB与CD所成角的大小是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/1f4f6014-fda8-4c5e-9e65-68e0ffd89825.png?resizew=161)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/1f4f6014-fda8-4c5e-9e65-68e0ffd89825.png?resizew=161)
A.30° | B.45° | C.60° | D.120° |
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2020-12-20更新
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23卷引用:江西省宜春市奉新县第一中学2021-2022学年高二下学期第一次月考数学(理)试题
江西省宜春市奉新县第一中学2021-2022学年高二下学期第一次月考数学(理)试题山东省新高考质量测评联盟2020-2021学年高三上学期12月联合调研检测数学试题江苏省无锡市江阴市青阳中学2020-2021学年高三上学期1月阶段检测数学试题(已下线)必刷卷01-2021年高考数学考前信息必刷卷(江苏专用)(已下线)必刷卷03-2021年高考数学考前信息必刷卷(山东专用)(已下线) 专题24 立体几何角的计算问题(测)-2021年高三数学二轮复习讲练测(文理通用)(已下线)2021年高考数学押题预测卷(新高考卷)03湖南省长沙市雅礼中学2021届高三下学期高考热身训练数学试题辽宁省锦州市2020-2021学年高一下学期期末数学试题江苏省南京市宁海中学2020-2021学年高一下学期6月月考数学试题江苏省扬州中学2020-2021学年高一下学期5月月考数学试题重庆市朝阳中学2021-2022学年高二上学期10月月考数学试题江苏省南通市如东县2021-2022学年高三上学期期中数学试题河南省洛阳市2021-2022学年高三第二次统一考试理科数学试题陕西省汉中市2021-2022学年高二下学期期末校际联考文科数学试题河北省沧州市沧县风化店中学2022-2023学年高二上学期开学考试数学试题(已下线)第53讲 章末检测八陕西省汉中市2021届高三上学期第五次校际联考文科数学试题陕西省榆林市神木中学2020-2021学年高三下学期培优班模拟考试理科数学试题陕西省榆林市神木中学2020-2021学年高三下学期培优班模拟考试文科数学试题陕西省汉中市2021届高三上学期第五次校际联考理科数学试题重庆市荣昌中学校2022-2023学年高二上学期期中数学试题(已下线)FHsx1225yl160
名校
解题方法
10 . 已知三棱柱
中,
平面
,
,
,
为
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/16/319e0656-3c3b-4028-a144-22dabe13ee9d.png?resizew=162)
(1)证明:直线
平面
;
(2)求异面直线
与
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.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/3d11a5a756d8fdd7b294c4f5fd63467b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12d3d5c6d668afddb0603556c9133996.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/16/319e0656-3c3b-4028-a144-22dabe13ee9d.png?resizew=162)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/504a36c231b8e80724d01649e7c0944f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9078475c350c04bd97666d808dd55a.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
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2020-12-02更新
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3卷引用:江西省抚州市临川二中实验学校2019-2020学年高一年级下学期期末考试文科数学试题