名校
1 . 如图,四棱柱
中,平面
平面
,底面
为菱形,
与
交于点O,
.
![](https://img.xkw.com/dksih/QBM/2022/6/2/2992613741322240/2995556340269056/STEM/33c76a39-6559-4d7d-9792-b19f7a924fa9.png?resizew=276)
(1)求证:
平面
;
(2)线段
上是否存在点F,使得
与平面
所成角的正弦值是
?若存在,求出
;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ba5715a95b8de18c637c12c3d30d7d.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f435b981d18b1ba02cb78ff404496c29.png)
![](https://img.xkw.com/dksih/QBM/2022/6/2/2992613741322240/2995556340269056/STEM/33c76a39-6559-4d7d-9792-b19f7a924fa9.png?resizew=276)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ad2917b716db41c03e670f77d411d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239198e40085b7dcffbe747c9c265a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a3fd10496f99992b2b6de9f4f6e34ed.png)
您最近一年使用:0次
2022-06-06更新
|
762次组卷
|
8卷引用:山西省运城市2022-2023学年高二上学期期末数学试题
名校
解题方法
2 . 如图,△ABC是等边三角形,EA⊥平面ABC,
,
,F为BE的中点.
![](https://img.xkw.com/dksih/QBM/2022/5/26/2987968370409472/2995471762808832/STEM/1b805987-a397-424e-9cb5-4056adcfc43d.png?resizew=137)
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
平面ABC;
(2)证明:AF⊥平面BDE.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1975679e668da558994a1b999f4f5394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ed9e594c8562b84cf1e0e18b272e45.png)
![](https://img.xkw.com/dksih/QBM/2022/5/26/2987968370409472/2995471762808832/STEM/1b805987-a397-424e-9cb5-4056adcfc43d.png?resizew=137)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
(2)证明:AF⊥平面BDE.
您最近一年使用:0次
2022-06-06更新
|
777次组卷
|
4卷引用:山西省临汾市2020-2021学年高一下学期期末数学试题
3 . 如图,四棱锥
中,侧面
为等边三角形且垂直于底面
,
,
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/2022/5/23/2985727444746240/2989396544397312/STEM/8c3ee4eaa60b4f8baef12e8e6a1db9a8.png?resizew=259)
(1)证明:
;
(2)若
面积为
,求点
到面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78aafccd397e9c88a567abf4993d40f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7af36689a2d2a5f999b3b5859a3c9faf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61588617d22abd00af4ca489bb3a8787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/2022/5/23/2985727444746240/2989396544397312/STEM/8c3ee4eaa60b4f8baef12e8e6a1db9a8.png?resizew=259)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04fb30a9d07e410ac92c34b8ad0133db.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a675310c8ba418e5a59beb7317e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
2022-05-28更新
|
856次组卷
|
3卷引用:山西省阳高县第一中学校2022-2023学年高一下学期期末数学试题
名校
解题方法
4 . 已知梯形ABCD如图(1)所示,其中AB//CD,∠BAD=90°,∠BCD=45°,
,过点A作BC的平行线交线段CD于M,点N为线段BC的中点.现将△DAM沿AM进行翻折,使点D到达点P的位置,且平面PAM⊥平面AMC,得到的图形如图(2)所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/369bac4f-9f52-47ae-bc09-79b801f99bfa.png?resizew=362)
(1)求证:AP⊥PN;
(2)若AB=2,求点C到平面PMN的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e4150583bb730627d98e250153a704.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/369bac4f-9f52-47ae-bc09-79b801f99bfa.png?resizew=362)
(1)求证:AP⊥PN;
(2)若AB=2,求点C到平面PMN的距离.
您最近一年使用:0次
2022-02-27更新
|
536次组卷
|
5卷引用:山西省怀仁市2022届高三上学期期末数学(文)试题
山西省怀仁市2022届高三上学期期末数学(文)试题河南省名校联盟2021-2022学年高三上学期毕业班阶段性测试(三)文科数学试题山东省泰安市新泰市第一中学东校2021-2022学年高三上学期期中数学试题河南省顶级中学2021-2022学年高三上学期阶段性测试(一)文科数学试题(已下线)专题5.1 模拟卷(1)-2022年高考数学大数据精选模拟卷(新高考地区专用)
5 . 如图,在直三棱柱
中,
,D,E分别为
的中点.
![](https://img.xkw.com/dksih/QBM/2021/12/27/2887212414181376/2924073101574144/STEM/fcf2c1ae-923d-44a8-81cb-24a31668b4d6.png?resizew=169)
(1)求证:
平面
;
(2)若
,二面角
的大小为
,求直线
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b253f55d19e2cc6602c5f4897c84e54.png)
![](https://img.xkw.com/dksih/QBM/2021/12/27/2887212414181376/2924073101574144/STEM/fcf2c1ae-923d-44a8-81cb-24a31668b4d6.png?resizew=169)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063510e3c1fb6a7ccc3b8e3e3c7d660e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffd657e48b15b9b54a55817e2c26b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1854ba6cc92481d7a616bd2788a47e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
您最近一年使用:0次
2022-02-25更新
|
354次组卷
|
3卷引用:山西省部分学校2023届高三上学期期末数学试题
名校
解题方法
6 . 如图,已知四棱锥
的底面是矩形,
平面ABCD,
,点E是棱AD上的一点,且
,点F是棱PC上的一点,且
.
![](https://img.xkw.com/dksih/QBM/2021/12/27/2881711609856000/2919181869195264/STEM/de1e0a77-f042-4a99-86ab-650871c6056b.png?resizew=181)
(1)求证:
平面PEB;
(2)求直线PC与平面PEB所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e59cfcbbbba20f631e0fd70e3ade6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d315eff37c1bdf5be90b6015b08bdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3803184b948b8242757d731661387ade.png)
![](https://img.xkw.com/dksih/QBM/2021/12/27/2881711609856000/2919181869195264/STEM/de1e0a77-f042-4a99-86ab-650871c6056b.png?resizew=181)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f44f2b2f82a9126223138972850aa2.png)
(2)求直线PC与平面PEB所成角的正弦值.
您最近一年使用:0次
2022-02-18更新
|
973次组卷
|
7卷引用:山西省六校联考2021-2022学年高二下学期期末数学试题
名校
7 . 在长方体
中,
,点
分别在
上,且
.
![](https://img.xkw.com/dksih/QBM/2022/1/21/2899421508214784/2918248211955712/STEM/0bf7ae32-6bb1-4788-b2d2-306c9a84340c.png?resizew=147)
(1)求证:
平面
;
(2)求平面
与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae73bc98ac4a45a63724dbde949c9625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e86e3991200297ad172455e5ea93f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d0277e7ab44fd6851ca16dfdbf1c8be.png)
![](https://img.xkw.com/dksih/QBM/2022/1/21/2899421508214784/2918248211955712/STEM/0bf7ae32-6bb1-4788-b2d2-306c9a84340c.png?resizew=147)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/565133e91e3ace2b2187cfc6f1db5be6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
您最近一年使用:0次
2022-02-17更新
|
186次组卷
|
6卷引用:山西省晋中市2021-2022学年高二上学期期末数学试题
山西省晋中市2021-2022学年高二上学期期末数学试题山西省朔州市怀仁市第一中学2021-2022学年高二下学期第一次月考数学(文)试题山西省朔州市怀仁市第一中学2021-2022学年高二下学期第一次月考数学(理)试题(已下线)高二上学期期末【常考60题考点专练】(选修一+选修二)-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)安徽省合肥市肥东县综合高中2021-2022学年高三下学期期中理科数学试题(已下线)高二上学期期中【常考60题考点专练】(选修一全部内容)-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)
名校
解题方法
8 . 蒙古包是蒙古族牧民居住的一种房子,建造和搬迁都很方便,适于游牧生活.其结构如图所示,上部分是侧棱长为3的正六棱锥,下部分是高为1的正六棱柱,
分别为正六棱柱上底面与下底面的中心.
![](https://img.xkw.com/dksih/QBM/2022/1/21/2899421508214784/2918248211816448/STEM/3a800633-0447-44d1-b55e-2375670016ac.png?resizew=214)
(1)若
长为
,把蒙古包的体积
表示为
的函数;
(2)求蒙古包体积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://img.xkw.com/dksih/QBM/2022/1/21/2899421508214784/2918248211816448/STEM/3a800633-0447-44d1-b55e-2375670016ac.png?resizew=214)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)求蒙古包体积的最大值.
您最近一年使用:0次
2022-02-17更新
|
308次组卷
|
4卷引用:山西省晋中市2021-2022学年高二上学期期末数学试题
山西省晋中市2021-2022学年高二上学期期末数学试题山西省朔州市怀仁市第一中学2021-2022学年高二下学期第一次月考数学(文)试题(已下线)专题2.2 一元函数的导数及其应用 章末检测2(中)-【满分计划】2021-2022学年高二数学阶段性复习测试卷(人教A版2019选择性必修第二册)广东省茂名市信宜市2022-2023学年高二下学期期中考试数学试题
名校
9 . 如图,已知四棱锥
中,
平面
为等边三角形,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/9589ce2e-890e-4a61-b18c-23a14b80c5c3.png?resizew=204)
(1)求证:
平面
;
(2)若
,求平面
与平面
所成锐二面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed35808d0a9c4eb0fad0cee828a140f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e8831817ee6f6e1df1fe5b2f0e3c67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/9589ce2e-890e-4a61-b18c-23a14b80c5c3.png?resizew=204)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7767d492158189b23af332a8016ed37d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27db558e8db4c957654c8e5cecd2d2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
您最近一年使用:0次
2022-02-15更新
|
449次组卷
|
4卷引用:山西省太原市2022届高三上学期期末数学(理)试题
解题方法
10 . 如图,在四棱锥P-ABCD中,底面ABCD是平行四边形,
,
,
,
,点M是AB的中点,点N是线段BC上的动点.
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896530954575872/2916870765772800/STEM/9bdecf3a-7c61-46f5-b081-ae0c3aa8a3ac.png?resizew=171)
(1)证明:
平面PAB;
(2)若点N到平面PCM的距离为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37c043da5fc1c1432e9224b2e72a37d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b96fac11d72f72c805dbddb8da72d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b58bbc02479917ad761a24eaae0dbfd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b56dd5ca8a90607d8ea2d27f23c2a822.png)
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896530954575872/2916870765772800/STEM/9bdecf3a-7c61-46f5-b081-ae0c3aa8a3ac.png?resizew=171)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34cf61780928291d51c7bbb08a5fcf81.png)
(2)若点N到平面PCM的距离为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ca820a456491348e72587e4fe10bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48732e80ec3c3b6de906d598c69840d5.png)
您最近一年使用:0次
2022-02-15更新
|
317次组卷
|
2卷引用:山西省运城市2022届高三上学期期末数学(文)试题