名校
1 . 在四棱锥
中,
平面
,四边形
是矩形,
分别是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/22/d955797e-f20e-4de6-b9d8-fbb5a25ea443.png?resizew=171)
(1)求证:
平面
;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.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/3fae73d61d2cd23e406428c4201adb2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1add89591b65658711b0ee4864426d55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/22/d955797e-f20e-4de6-b9d8-fbb5a25ea443.png?resizew=171)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade6931be0db4f7a771bb764c88c80d9.png)
您最近一年使用:0次
2022-06-21更新
|
3156次组卷
|
11卷引用:上海市育才中学2023届高三下学期3月月考数学试题
上海市育才中学2023届高三下学期3月月考数学试题河南省洛阳市洛宁县第一高级中学2022-2023学年高二上学期9月月考数学试题广东省潮州市潮安区凤塘中学2024届高三上学期第四次统测数学试题吉林省通化市辉南县第六中学2023-2024学年高二上学期11月月考数学试题安徽省淮北市第一中学2023-2024学年高二上学期第三次月考数学试题2022届全国新高考Ⅱ卷仿真模拟试卷(一)(已下线)7.5 空间向量求空间角(精讲)(已下线)专题16 空间向量及其应用(讲义)-2广东省汕尾市城区汕尾中学2023届高三下学期第一次月考(期末)数学试题广东省河源市龙川县第一中学2023-2024学年高二上学期11月期中考试数学试题(已下线)第一章 空间向量与立体几何(单元提升卷)-【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)
解题方法
2 . 如图,正方体ABCD﹣A1B1C1D1中,M是A1D的中点,则正确结论为_______
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/fd959f25-1c34-4cd3-a257-a920bbc96ac7.png?resizew=168)
①直线MB与直线B1D1相交,直线MB
平面ABC1
②直线MB与直线D1C平行,直线MB⊥平面A1C1D
③直线MB与直线AC异面,直线MB⊥平面ADC1B1
④直线MB与直线A1D垂直,直线MB∥平面B1D1C
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/fd959f25-1c34-4cd3-a257-a920bbc96ac7.png?resizew=168)
①直线MB与直线B1D1相交,直线MB
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828926e570a414e9dbc04a7bbcb65283.png)
②直线MB与直线D1C平行,直线MB⊥平面A1C1D
③直线MB与直线AC异面,直线MB⊥平面ADC1B1
④直线MB与直线A1D垂直,直线MB∥平面B1D1C
您最近一年使用:0次
名校
解题方法
3 . 已知四棱锥
的底面
是菱形.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/15/c046746f-388a-493f-af68-951167b862c8.png?resizew=154)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
平面
;
(2)若
,求证:
平面
;
(3)若
,平面
平面
,试判断
是否为等腰三角形,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/15/c046746f-388a-493f-af68-951167b862c8.png?resizew=154)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d0710321d97361e5782124bbf7f0c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e0b64d25ddd18454f88e40c45d7d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c6fc12dab69ff68686d8fa4fd3253a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a675310c8ba418e5a59beb7317e21e.png)
您最近一年使用:0次
2022-06-13更新
|
422次组卷
|
3卷引用:上海市曹杨第二中学2022-2023学年高二上学期10月月考数学试题
上海市曹杨第二中学2022-2023学年高二上学期10月月考数学试题北京市第二中学2021-2022学年高一6月阶段落实测试数学试题(已下线)核心考点07空间直线、平面的平行-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)
名校
4 . 如图,
平面
,四边形
为矩形,
,
,点
是
的中点,点
为
的中点.
![](https://img.xkw.com/dksih/QBM/2022/5/5/2973016701624320/2974198405455872/STEM/3c254b43-f511-4a66-9e47-9bfdc9c9d9ac.png?resizew=173)
(1)证明:
平面
;
(2)求平面
与
所成锐二面角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.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/0e7b6d04f024ca05cdfacc8ce9137c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2022/5/5/2973016701624320/2974198405455872/STEM/3c254b43-f511-4a66-9e47-9bfdc9c9d9ac.png?resizew=173)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
名校
5 . 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.
您最近一年使用:0次
2022-04-28更新
|
415次组卷
|
4卷引用: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
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)
6 . 设a,b是两条不同直线,
,
是两个不同平面,给出下列四个命题:
①若
,
,
,则
;②若
,
,则
;③若
,
,则
或
;④若
,
,
,则
.其中正确的命题是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057cdb4057bca398a838e868efd360f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/675f1e09eb033dab8ef96d1f1c349150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6784912a159b0be1bf836f985b0c2794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b330d69a949d9b55f4b6f18f47e0a37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d6a7aec04e1d5768ef830b534460a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f345365fe0a1986b80299f7a99a306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f345365fe0a1986b80299f7a99a306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d6a7aec04e1d5768ef830b534460a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72d2a947e3fdc214d40a7d3f54679a73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057cdb4057bca398a838e868efd360f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/675f1e09eb033dab8ef96d1f1c349150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f3aca2f1993d5e94255454c5f82a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
您最近一年使用:0次
2022-04-28更新
|
302次组卷
|
4卷引用:上海市奉贤区奉城高级中学2021-2022学年高二上学期10月月考数学试题
上海市奉贤区奉城高级中学2021-2022学年高二上学期10月月考数学试题(已下线)10.4 平面与平面间的位置关系(第1课时)(七大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020必修第三册)沪教版(2020) 必修第三册 新课改一课一练 第10章 10.4.2二面角陕西省延安市富县高级中学2021-2022学年高一上学期期末数学试题
名校
7 . 如图,已知矩形ABCD所在平面外一点P,PA⊥平面ABCD,E、F分别是AB、PC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/8d1b4906-42f2-4383-95b0-a8407cefc3c3.png?resizew=179)
(1)求证:
;
(2)若∠PDA=45°,求EF与平面ABCD所成角的大小.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/8d1b4906-42f2-4383-95b0-a8407cefc3c3.png?resizew=179)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8082db50586c0b735c9b8b5822c1156.png)
(2)若∠PDA=45°,求EF与平面ABCD所成角的大小.
您最近一年使用:0次
2022-04-23更新
|
866次组卷
|
5卷引用: 上海市川沙中学2022-2023学年高二上学期9月月考数学试题
上海市川沙中学2022-2023学年高二上学期9月月考数学试题吉林省东北师范大学附属中学2022-2023学年高二上学期大练习一数学试题第10章 空间直线与平面(单元提升卷)-2022-2023学年高二数学考试满分全攻略(沪教版2020必修第三册)(已下线)高二数学上学期【第一次月考卷】(测试范围:第1~2章)-2022-2023学年高二数学考试满分全攻略(人教A版2019选择性必修第一册)沪教版(2020) 必修第三册 同步跟踪练习 第10章 本章测试
名校
8 . 如图,在三棱柱
中,
=2
,且
,
⊥底面ABC,E为AB中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/26bcee3f-3f1a-4bd0-97f5-20c9416c111e.png?resizew=160)
(1)求证:
平面
;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d306eb8f0d127a7e9e26cde6a7e6cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cad7b03f934718b18ce34cdf0b85863.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/26bcee3f-3f1a-4bd0-97f5-20c9416c111e.png?resizew=160)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd597851c0db4e4de4769e10e09383b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a98287a302228ece1fa53c5c66c590f.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0397fff96574dbb83280ecb5fed6398d.png)
您最近一年使用:0次
2022-03-22更新
|
661次组卷
|
5卷引用:上海市松江二中2021-2022学年高二上学期9月月考数学试题
名校
解题方法
9 . 直三棱柱
中,
为正方形,
,
,M为棱
上任意一点,点D、E分别为AC、CM的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/8/53ef0522-8a05-438d-90ad-7c82c2c8030c.png?resizew=181)
(1)求证:
平面
;
(2)当点M为
中点时,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e918b70b02a73685e3c536c7f380e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/8/53ef0522-8a05-438d-90ad-7c82c2c8030c.png?resizew=181)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75aea24647cd4d0b4b9aa513bf5457b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
(2)当点M为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4711ea198eebe0a72ef2c66a9dd51b83.png)
您最近一年使用:0次
2022-03-17更新
|
2156次组卷
|
6卷引用:上海市静安区风华中学2024届高三上学期11月月考数学试题
名校
解题方法
10 . 已知如图,四边形
为矩形,
为梯形,平面
平面
,
,
,
.
为
中点,求证:
平面
;
(2)求直线
与平面
所成角的正弦值;
(3)在线段
上是否存在一点
(除去端点),使得平面
与平面
所成锐二面角的大小为
?若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5bf51c07144386bd23a422d9ceb140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6379891c7150af4188b5ab746d703bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d20fec32122b4a70b993976201c9ba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0046177466c78f08d45449dc5639bf38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe7a201432af0a2f9d21c6803906f5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f81fa367ec317fe2a30142e1c30cce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df21b7b7a47318ef2bb069450c39f1cd.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(3)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40cae1138ce408cf7ebbe14f152d6e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d46d11e82d212c5dd76dfc0bca0399e4.png)
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2022-01-08更新
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7卷引用:上海市七宝中学2023-2024学年高二上学期10月月考数学试题
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