名校
解题方法
1 . 如图,在三棱锥
中,
,
为
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/74906074-b8b1-46e7-bff7-73a06630e5d0.jpg?resizew=172)
(1)证明:平面
平面
;
(2)若
是边长为
的等边三角形,点
在棱
上,
,且二面角
的大小为
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c603778990c5726c4bdef5038b759f7c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/74906074-b8b1-46e7-bff7-73a06630e5d0.jpg?resizew=172)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf6dc837ae85207789b94d109c5c2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4807ca16360c0cca436e59d4be98f626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46d76c5ac5c9f0a2ec064487c02c476e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324d453870b345da0c41977290192f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
您最近一年使用:0次
2022-12-26更新
|
590次组卷
|
5卷引用:安徽省六安第二中学2022-2023学年高三上学期第四次月考数学试题
名校
2 . 如图,四边形
是圆柱
的轴截面,点
在圆柱
的底面圆周上,
是
的中点,圆柱
的底面圆的半径
,侧面积为
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/b14e0907-86f3-408a-9640-03d405e2ba42.png?resizew=137)
(1)求证:
;
(2)求直线
与平面
所成角的正弦值.
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9774f83067ed956a551bc41adcce0469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9b21c292580e15f7d789319ecf40d6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dfffb77e9656a22d5951d9f1c6a7c9d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/b14e0907-86f3-408a-9640-03d405e2ba42.png?resizew=137)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bad3d9422cf9c0b078900b3c507e87c.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
您最近一年使用:0次
名校
解题方法
3 . 如图,在棱长为1的正方体
中,
,
分别是棱
,
上的动点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/e782a007-0e62-4809-ab7b-95ff1904ba4e.png?resizew=204)
(1)证明:
;
(2)当三棱锥
的体积取得最大值时,求平面
与平面
的夹角正切值.
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/e782a007-0e62-4809-ab7b-95ff1904ba4e.png?resizew=204)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e7c16fcd117047c6c81ab37118e4c5.png)
(2)当三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d572b24c3b4549b7fd579d5706c5970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bff3ccea5989c60e51e321af3f53f54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
解题方法
4 . 已知函数
.
(1)若
,证明:函数
有且仅有两个不同的零点;
(2)在(1)的条件下,设这两个零点分别为
.
(i)证明:
;
(ii)将以
为顶点的四边形
绕
轴旋转一周得到一个几何体,求该几何体体积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e4550072cd13e511a02246496caecc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0134a46f2f76b924127cb46ac939e322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7eb1c785d537dfa63a7427123ebf69.png)
(2)在(1)的条件下,设这两个零点分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/694c99143dcd6fdc8138efa03d0c3350.png)
(i)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f099f2a4f62930bebb7cc7597d9811e.png)
(ii)将以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1a41250a40e8557e43a7fc96afca04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
您最近一年使用:0次
名校
解题方法
5 . 如图,在四棱锥
中,
,且
是棱
上一点,且满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/3c02264d-3b1e-4df5-9624-9a16f6342193.png?resizew=128)
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
平面
;
(2)若三棱锥
的体积是
的面积是
,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/609653c2656cd993d77841b3922357ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71c67dae7c83183ffbf215c58ed1def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4448fd8a289320119b897a0deba4dd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc3ecf445ec08914acb644c94c4b0670.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/3c02264d-3b1e-4df5-9624-9a16f6342193.png?resizew=128)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)若三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d83c991c3d5cf60d11454f4ea5a129.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce87b2ad30ede39a8d3e785beb4df64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次
2022-09-28更新
|
333次组卷
|
2卷引用:安徽省安庆市宿松中学2022-2023学年高二上学期开学考试数学试题
6 . 如图,四边形
为菱形,
是平面
同一侧的两点,
平面
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/6e5ff551-f963-4013-a45a-3d1cc6484c4a.png?resizew=187)
(1)证明:平面
平面
;
(2)求四棱锥
与四棱锥
公共部分的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51cdede506fc850f6714ec472aeb121.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be01760a2aa3084f1b8b8df67e67965d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def96a65cce4cafc1e6a6a24bd54a200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d475c62cf3690c78b37a2b59e3f243e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/6e5ff551-f963-4013-a45a-3d1cc6484c4a.png?resizew=187)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dff0e0fbc31a6bc4b20cfb2c33e0e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a0d238b6e9b49bbea22a79402e8e4f.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34295a80212129405593c3bac51aef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f14b998691dd4d8fc9dfebd3b095ed51.png)
您最近一年使用:0次
7 . 如图,正方形
与直角梯形
所在平面互相垂直,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/7/14/3022222379122688/3022941771972608/STEM/4081a37c6d9c49688f9a0930db72bee6.png?resizew=140)
(1)求证:
平面
;
(2)求四面体
的体积;
(3)求平面
与平面
的夹角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb64353c99068a7a1a8508a22f5b25b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d4ea87a0837c4eee99c8b5ba6ec977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e1337a89d4caeb233a565b75c11bf7b.png)
![](https://img.xkw.com/dksih/QBM/2022/7/14/3022222379122688/3022941771972608/STEM/4081a37c6d9c49688f9a0930db72bee6.png?resizew=140)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(2)求四面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f84f169e50dc59d4f7a8e1e36f5c847.png)
(3)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65277734669566578cbb7d690bb200fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128c69eb81dae89c6989d06d20925ad2.png)
您最近一年使用:0次
解题方法
8 . 如图,在三棱柱
中,
为
的中点,
,
,
.
(1)证明:
平面
;
(2)若
的外接圆半径为
,
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d89ba4036a5d18ec4abed44d7fd8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1baa3d0db9ad31d33c2883a6efed1dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc74aabd23796e7aa56fb0b6b1ff7bf7.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eddaf3f33bd9a99162c061c9dd99aee.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0f94f5c7ef7d7cafaeef1ff3a7ac70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1af34cbac55c5937c2dbacaa5f434d0.png)
![](https://img.xkw.com/dksih/QBM/2022/7/28/3032184793858048/3032957836025856/STEM/34a8ed680ae64fa08a69829296c9c4f2.png?resizew=282)
您最近一年使用:0次
解题方法
9 . 如图,在四棱锥A-BCDE中,AB⊥平面BCDE,底面BCDE是直角梯形,
,
,点F为棱AD的中点,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/d3871978-318c-40e1-a32a-5ecc7d0b3276.png?resizew=172)
(1)求证:BF⊥平面ADE;
(2)求点A到平面BEF的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef0f4f2fa1f55c4d82d11ac48566489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ea9d3df7c2bcdf135dedd1554fb82b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb9847014fb62c78cf20e2255dc0e3b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d2231c7a2875ab6d423dff3ead4069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06201e4f55b78d8b30afb257d5a1b16b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/d3871978-318c-40e1-a32a-5ecc7d0b3276.png?resizew=172)
(1)求证:BF⊥平面ADE;
(2)求点A到平面BEF的距离.
您最近一年使用:0次
名校
解题方法
10 . 如图所示,ABCD是正方形,O是正方形的中心,PO⊥底面ABCD,底面边长为a,E是PC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/a0126330-7a6f-45ea-a898-c68b3e88478d.png?resizew=172)
(1)求证:PA∥平面BDE;
(2)平面PAC⊥平面BDE;
(3)若二面角E﹣BD﹣C为30°,求四棱锥P﹣ABCD的体积.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/a0126330-7a6f-45ea-a898-c68b3e88478d.png?resizew=172)
(1)求证:PA∥平面BDE;
(2)平面PAC⊥平面BDE;
(3)若二面角E﹣BD﹣C为30°,求四棱锥P﹣ABCD的体积.
您最近一年使用:0次
2022-06-14更新
|
1528次组卷
|
12卷引用:安徽省池州市第一中学2020-2021学年高二上学期期中数学(文)试题
安徽省池州市第一中学2020-2021学年高二上学期期中数学(文)试题【全国百强校】湖南师范大学附属中学2017-2018学年高一上学期期末考试数学试题(已下线)第02章 章末检测(A)-2018-2019版数学创新设计课堂讲义同步系列(人教A版必修2)湖南省衡阳市衡阳县第四中学2019-2020学年高一(菁华班)上学期期中A卷数学试题河北省张家口市第一中学(普通实验班)2020-2021学年高二上学期10月月考数学试题广东省佛山市顺德区第一中学2019-2020学年高二上学期第一次阶段考试数学试题(已下线)专题25 二面角相关问题训练-【重难点突破】2021-2022学年高一数学常考题专练(人教A版2019必修第二册)宁夏银川唐徕回民中学2021-2022学年高一下学期期末考试数学试题(已下线)专题23 空间中的垂直关系(针对训练)-2023年高考数学一轮复习精讲精练宝典(新高考专用)甘肃省张掖市某重点校2022-2023学年高一下学期6月月考数学试题湖南省株洲市炎陵县2022-2023学年高二下学期期末数学试题黑龙江省龙西北八校联合体2022-2023学年高一下学期期末考试数学试题