名校
解题方法
1 . 如图,在四棱锥
中,
平面
,
,
,
,
, E为PD的中点,点F在PC上,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/ca551637-980a-49cc-b8d0-20e7bfe56d93.png?resizew=174)
(1)求证:
平面
;
(2)设点G在PB上,且
.判断直线AG是否在平面AEF内,说明理由.
![](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/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a923784f083b7f4777891afe06b44e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f88454ace46996b99361d18e76189cdc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/ca551637-980a-49cc-b8d0-20e7bfe56d93.png?resizew=174)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)设点G在PB上,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557010ef2b20618df4771ac66daef18f.png)
您最近一年使用:0次
2 . 如图,在长方体ABCD-A1B1C1D1中,点E,F分别为棱AA1,AB的中点.
![](https://img.xkw.com/dksih/QBM/2022/10/25/3095301812314112/3096963372433408/STEM/12f778e64208488ab5a26d26f18658ec.png?resizew=189)
(1)求证:四边形EFCD1是梯形;
(2)证明:直线D1E,DA,CF共点.
![](https://img.xkw.com/dksih/QBM/2022/10/25/3095301812314112/3096963372433408/STEM/12f778e64208488ab5a26d26f18658ec.png?resizew=189)
(1)求证:四边形EFCD1是梯形;
(2)证明:直线D1E,DA,CF共点.
您最近一年使用:0次
解题方法
3 . 如图,正方体
中,
分别是
的中点,则下列结论正解的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3afeadf85043324616eea8545b2a59.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2022-06-20更新
|
750次组卷
|
6卷引用:四川省峨眉文旅综合高中学校2022-2023学年高二上学期第二次月考数学试题
四川省峨眉文旅综合高中学校2022-2023学年高二上学期第二次月考数学试题广西普通高中2021-2022学年高二6月学业水平考试数学试题(已下线)8.5.1 直线与直线平行(精讲)-【题型分类归纳】2022-2023学年高一数学同步讲与练(人教A版2019必修第二册)(已下线)6.3.2刻画空间点、线、面位置关系的公理(课件+练习)(已下线)8.5.1 直线与直线平行-同步精品课堂(人教A版2019必修第二册)湖南省2024年普通高中学业水平合格性考试数学考前押题卷(一)