名校
解题方法
1 . 如图几何体是圆柱的一部分,它是由矩形
(及其内部)以AB边所在直线为旋转轴旋转120°得到的,点P是弧CE的中点,Q是AC的中点,BP与CE交于点O.
∥平面
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b0f093f21717e613ed811af47aacd2c.png)
您最近一年使用:0次
2022-06-16更新
|
503次组卷
|
2卷引用:重庆市五校2022-2023学年高二上学期10月期中联考数学试题
名校
2 . 如图1,在平行四边形
中,
,
,
,以对角线
为折痕把
折起,使点
到达图2所示点
的位置,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/2/07743fda-aad7-4d69-93e7-72b1be14b90a.png?resizew=477)
(1)求证:
;
(2)若点
在线段
上,且二面角
的大小为
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56e703b755cc4fe7ec89af69ec7c93d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f82a30d6b232dc4d8f35d2d6e0e0f42.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/2/07743fda-aad7-4d69-93e7-72b1be14b90a.png?resizew=477)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65334978b0519b379910dfc4acf8344.png)
(2)若点
![](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/8d682fd0344452998187cb6d48de3dd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42020cfacd62b300cad053981bab9e0b.png)
您最近一年使用:0次
2022-05-26更新
|
1211次组卷
|
3卷引用:重庆市实验中学校2021-2022学年高一下学期期末复习(二)数学试题
名校
解题方法
3 . 已知
矩形ABCD所在的平面,且
,M、N分别为AB、PC的中点.求证:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/11/2a20239f-268a-4c7b-8f7c-af20333520bc.png?resizew=224)
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
平面ADP;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f6967901d6c855864df01e7bf7a15c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/11/2a20239f-268a-4c7b-8f7c-af20333520bc.png?resizew=224)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828247a3338571cb0d4ba2a5bf88929c.png)
您最近一年使用:0次
2022-07-10更新
|
484次组卷
|
7卷引用:重庆市荣昌中学校2020-2021学年高二上学期十月月考数学试题
重庆市荣昌中学校2020-2021学年高二上学期十月月考数学试题广东省揭阳第一中学2020-2021学年高一下学期期末数学试题(已下线)专题8.3 空间点、直线、平面之间的位置关系(练)- 2022年高考数学一轮复习讲练测(新教材新高考)广西百色市2021-2022学年高一下学期期末教学质量调研测试数学试题内蒙古赤峰市赤峰第四中学2022-2023学年高一下学期5月月考数学试题甘肃省白银市会宁县第四中学2022-2023学年高一下学期第一次月考数学试题广东省鹤山市第一中学2023-2024学年高二上学期第一阶段考数学试题
名校
4 . 如图,在三棱柱
中,
平面ABC,D,E,F分别为
,AC,
的中点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/18/10aa192c-2b71-4d70-a7bf-16c280aa14f1.png?resizew=169)
(1)求证:AC⊥平面BEF;
(2)求点D与平面
的距离;
(3)求二面角
的正弦值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8bfe2553e852df73185d017c0a62fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1efa2b0018617bd579875185dafca39a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9d5815dc775d5a5810fff0b016a8d5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/18/10aa192c-2b71-4d70-a7bf-16c280aa14f1.png?resizew=169)
(1)求证:AC⊥平面BEF;
(2)求点D与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba99277e38f8d9f817a9d7db8198219.png)
(3)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e59b1f7689bff6644bfdeb9e36feb163.png)
您最近一年使用:0次
名校
5 . 如图,在四棱锥
中,
,平面
平面ABCD.
![](https://img.xkw.com/dksih/QBM/2022/5/29/2990062350671872/2991316310966272/STEM/6cf95538-0c00-4d66-927e-6dd6ee4cb87a.png?resizew=152)
(1)证明:
平面ABCD;
(2)AD与平面PBD所成角的正弦值为
,求三棱锥
的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9dd1d139678732dfc1102966c24d064.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://img.xkw.com/dksih/QBM/2022/5/29/2990062350671872/2991316310966272/STEM/6cf95538-0c00-4d66-927e-6dd6ee4cb87a.png?resizew=152)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
(2)AD与平面PBD所成角的正弦值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821309f088a175c00dc0f4828334503d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddfe0ccf24d760c77535a70c92dad145.png)
您最近一年使用:0次
名校
6 . 如图,四边形ABCD为菱形,DE⊥平面ABCD,FC⊥平面ABCD,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/84a1e29b-152a-4bf7-9440-21feae13e497.png?resizew=179)
(1)设BE的中点为H,证明:FH⊥平面EDB;
(2)求二面角
的平面角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2212d4709e52543d158ff5da18612a14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f5eec0addba78f2e0cdfb7ecc59a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f216eec359152b3f4d1f4d205057907.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/84a1e29b-152a-4bf7-9440-21feae13e497.png?resizew=179)
(1)设BE的中点为H,证明:FH⊥平面EDB;
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8c8e723137bc6f9ca07d844742c2a22.png)
您最近一年使用:0次
2022-05-24更新
|
751次组卷
|
2卷引用:重庆市第一中学校2021-2022学年高一下学期期中数学试题
名校
解题方法
7 . 四棱锥P-ABCD中,PC⊥平面ABCD,底面ABCD是等腰梯形,且
,
,
,
,M是棱PB的中点.
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be41b05e11ba5eadaaed9a224b949774.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e0684e0b09b04661c602437982c0397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9bad875ab4b5b8c707d452db4cabaa4.png)
您最近一年使用:0次
2022-05-08更新
|
721次组卷
|
5卷引用:重庆市朝阳中学2023-2024学年高一下学期5月月考数学试题
8 . 已知四棱锥
中,底面
为等腰梯形,
,
,
,
是斜边为
的等腰直角三角形.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/15/4400b9e4-0419-4e29-ab2a-826e48dee9d3.png?resizew=176)
(1)若
时,求证:平面
平面
;
(2)若
时,求直线
与平面
所成的角的正弦值.
![](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/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/641aa755ada1d83daafc82d5f1fa88db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b660bd8e98d065475eb0a1068cf2725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/15/4400b9e4-0419-4e29-ab2a-826e48dee9d3.png?resizew=176)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dd63641dda745cf8917852d3e48fa70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a3fd5284e160896f07ce367645fd04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b605cef1be4c42e0cb2d18bfc6f6c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2022-06-13更新
|
683次组卷
|
6卷引用:重庆市乌江新高考协作体2022-2023学年高二下学期期末数学试题
重庆市乌江新高考协作体2022-2023学年高二下学期期末数学试题浙江省长兴、余杭、缙云三校2022届高三下学期5月联考数学试题(已下线)7.3 空间角(精练)(已下线)第4讲 空间向量的应用 (2)(已下线)第07讲 空间向量的应用 (2)山西省大同市浑源中学2022-2023学年高二下学期期末数学试题
9 . 如图,在四棱锥
中,底面
是边长为1的正方形,
底面
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/c11cff88-3db6-4c9c-b63b-8e3d2365c4e9.png?resizew=166)
(1)证明:平面
平面
;
(2)点M在平面
内,直线
平面
,求四棱锥
的体积.
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829f9180ddd9aa1a0ee0dc520f4e0b5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/c11cff88-3db6-4c9c-b63b-8e3d2365c4e9.png?resizew=166)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04c222223dae9ef27d4c132534d9848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)点M在平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0edb1508fc95765f3bb316bcb5252d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4117625867a74cd022584500c76deca.png)
您最近一年使用:0次
2022-05-31更新
|
587次组卷
|
3卷引用:重庆市巫山县官渡中学2021-2022学年高一下学期期末数学试题
名校
解题方法
10 . 如图,在四棱锥
中,底面
为正方形,
底面
,
,
为线段
的中点,
为线段
上的动点.
![](https://img.xkw.com/dksih/QBM/2022/5/19/2983014030344192/2984836545757184/STEM/ff70c3d1-5a4e-4892-a7cd-e764e6f4e3f8.png?resizew=176)
(1)求证:平面
平面
;
(2)若
为线段
上靠近
的三等分点,求二面角
的余弦值.
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829f9180ddd9aa1a0ee0dc520f4e0b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2022/5/19/2983014030344192/2984836545757184/STEM/ff70c3d1-5a4e-4892-a7cd-e764e6f4e3f8.png?resizew=176)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6501f1c913a4ef64957a2f01ab5baa15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)若
![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5f8dfb22b415219ba7af3dc7e3d808.png)
您最近一年使用:0次
2022-05-22更新
|
933次组卷
|
3卷引用:重庆市巴蜀中学校2022届高三下学期适应性月考(十)数学试题