名校
解题方法
1 . 《九章算术》是我国古代数学专著,书中将底面为矩形且一条侧棱垂直于底面的四棱锥称为“阳马”.如图,在阳马
中,
平面
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/28/969fb55e-8d7e-4294-9ade-594df6e412b4.png?resizew=165)
(1)求证:
平面
;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c83f8945042b9c8fb2fbdac9308d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defa5b53043ae802bb1af7d14374406d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/28/969fb55e-8d7e-4294-9ade-594df6e412b4.png?resizew=165)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a976a64deadb0b4e0f9bdb26a6dc594.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca48c18021e7be4bbb3e95576e1c1b5f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc3ffec2558e590c0712e77d7ab27ec5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40f5583fbfcac922c8ec238c0438452.png)
您最近一年使用:0次
2023-02-26更新
|
1179次组卷
|
4卷引用:广西2021-2022学年高二上学期12月高中学业水平考试数学试题
解题方法
2 . 如图,AB是底面
的直径,C为
上异于A、B的点,PC垂直于
所在平面,D、E分别为PA、PC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/22/21087549-38e8-465c-a8b5-6997d9e1609b.png?resizew=208)
(1)求证:DE∥平面ABC.
(2)求证:平面BDE⊥平面PBC.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/22/21087549-38e8-465c-a8b5-6997d9e1609b.png?resizew=208)
(1)求证:DE∥平面ABC.
(2)求证:平面BDE⊥平面PBC.
您最近一年使用:0次
名校
解题方法
3 . 如图,四棱锥
的底面
为矩形,
底面
,
,点
是棱
的中点.
![](https://img.xkw.com/dksih/QBM/2022/4/16/2959554343337984/2962809462726656/STEM/a6cc28c94f5f4f9083c776a3a016ed64.png?resizew=154)
(1)求证:
;
(2)若
,
,求三棱锥
的体积.
(参考公式:锥体体积公式
,其中
为低面面积,
为高.)
![](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://img.xkw.com/dksih/QBM/2022/4/16/2959554343337984/2962809462726656/STEM/a6cc28c94f5f4f9083c776a3a016ed64.png?resizew=154)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf900817bd582fe8c5770158458208a1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f656e1d1f68954e5f06de8958f6a9310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d492a2248463e0c0199a25d0f76d23.png)
(参考公式:锥体体积公式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7309683ff41a94e5c5cfeabaeda52a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
您最近一年使用:0次
2022-04-21更新
|
1146次组卷
|
3卷引用:广西壮族自治区普通高中2020—2021学年高二7月学业水平考试数学试题
名校
解题方法
4 . 如图所示,在三棱柱ABC-A1B1C1中,AB=AC,侧面BCC1B1⊥底面ABC,E,F分别为棱BC和A1C1的中点.
(2)求证:平面AEF⊥平面BCC1B1.
(2)求证:平面AEF⊥平面BCC1B1.
您最近一年使用:0次
2022-04-02更新
|
673次组卷
|
9卷引用:广西柳州市第三中学2022-2023学年高二上学期11月学考二模考试数学试题
广西柳州市第三中学2022-2023学年高二上学期11月学考二模考试数学试题【市级联考】江苏省徐州市2018-2019学年高三考前模拟检测数学试题【市级联考】江苏省徐州市2019届高三考前模拟检测数学试题河北省唐山市开滦第二中学2019-2020学年高二上学期第二次月考数学试题江西省南昌市八一中学、洪都中学等七校2020-2021学年高二下学期期中联考数学(理)试题江西省南昌市八一中学、洪都中学等七校2020-2021学年高二下学期期中联考数学(文)试题(已下线)专题三 立体几何检测-2022年高考数学二轮复习讲练测(新教材·新高考地区专用)(已下线)类型二 空间点、线、面的位置关系-【题型突破】备战2022年高考数学二轮基础题型+重难题型突破(新高考专用)江苏省南京市中华中学2023-2024学年高一下学期5月月考数学试卷
解题方法
5 . 如图,正方体
中,
、
分别是
、
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/29/65bf0f50-1254-40f1-b4bf-9a19187d295d.png?resizew=213)
(1)求证:
平面
;
(2)求证:
平面
.
![](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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbafedc202bd0d86c4dfdece9f8f4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/29/65bf0f50-1254-40f1-b4bf-9a19187d295d.png?resizew=213)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49644c4cdd8a0e9bb6241c625c4ae21e.png)
您最近一年使用:0次
2022-06-23更新
|
615次组卷
|
2卷引用:广西钦州市第四中学2022-2023学年高二上学期第二次学考模拟考试数学试题
解题方法
6 . 如图,在长方体
中,
,M,N分别为
,
的中点,AC与BD交于点O.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/785eb662-0bd7-48da-b3ce-7b3e05ad2d5d.png?resizew=195)
(1)证明:
平面
;
(2)证明:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0159041367660e750ace61115dc9b844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/785eb662-0bd7-48da-b3ce-7b3e05ad2d5d.png?resizew=195)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eaa5e336f830a3e5cd60ff7a756f3ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73845d4d663b3de0b281611fe2c762fe.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e5981445b6f2a6c58974158d96a4de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73845d4d663b3de0b281611fe2c762fe.png)
您最近一年使用:0次
解题方法
7 . 如图,AB是
的直径,
是圆周上异于
的动点,矩形
的边
垂直于⊙O所在的平面,已知
.
![](https://img.xkw.com/dksih/QBM/2021/4/26/2708127496822784/2764594553765888/STEM/dd16b5eebb05432eac519959e9d908c0.png?resizew=185)
(1)求证:
平面
;
(2)求几何体
的体积的最大值.
(参考公式:锥体体积公式
,其中
为底面面积,
为高.)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ccea461315a9d05aa0193b937d4bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16c2129bf53a0dd83a6113c929536548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb55d443546c2b8471f849368a14ec3.png)
![](https://img.xkw.com/dksih/QBM/2021/4/26/2708127496822784/2764594553765888/STEM/dd16b5eebb05432eac519959e9d908c0.png?resizew=185)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed804581ff56d12bb8faee0349a42ee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8257b6bd25104e07b9ad935c0a3aac4.png)
(2)求几何体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
(参考公式:锥体体积公式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7309683ff41a94e5c5cfeabaeda52a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
您最近一年使用:0次
解题方法
8 . 在三棱柱
中,已知底面
是等边三角形,
底面
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/18f1966a-21dc-40b6-bc7a-ca5d25115759.png?resizew=102)
(1)求证:
;
(2)设
,求三棱锥
的体积.
(参考公式:锥体体积公式
,其中
为底面面积,
为高.)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/18f1966a-21dc-40b6-bc7a-ca5d25115759.png?resizew=102)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a8670759c61d785b9a336885df700b.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4339a40ae9d1947ec3a4b3e2fa3a16cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdfd6b9f498502e922a1ff2cc1a9acf9.png)
(参考公式:锥体体积公式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7309683ff41a94e5c5cfeabaeda52a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
您最近一年使用:0次
2020-02-18更新
|
422次组卷
|
3卷引用:2018年6月广西壮族自治区普通高中学业水平考试数学试题
2018年6月广西壮族自治区普通高中学业水平考试数学试题广西梧州市2019-2020学年高一上学期期末数学试题(已下线)第二章 立体几何中的计算 专题四 空间体积的计算 微点2 空间图形体积的计算综合训练【基础版】
解题方法
9 . 已知三棱锥中
,
平面
,
,
.
、
、
分别为
、
、
的中点.(锥体体积公式
,其中
为底面面积,
为高)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/e3d0ae1e-0b5d-4256-ad9a-de36de263e32.png?resizew=167)
(1)证明:
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45fbffb9e2c7fa7c5006cde8da0cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eaa1a14893960a7032a20c06de41ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aedf65d7d930fdb972d4802c0dea8b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7309683ff41a94e5c5cfeabaeda52a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/e3d0ae1e-0b5d-4256-ad9a-de36de263e32.png?resizew=167)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b81fb655624ff75a5eab94de9b8c8e9.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3daec02423dbc4bf84b8ec462d12b683.png)
您最近一年使用:0次
解题方法
10 . 已知函数
,其中
为自然对数的底数.
(1)求曲线
在点
处的切线方程;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d45e9bb438a011f890a8827795aad3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d218992d1942266d7208e476d0c4100.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f60bbeb01fdbdb4e75d63946b22e511.png)
您最近一年使用:0次