名校
解题方法
1 . 如图,矩形
和梯形
,
,
,平面
平面
,且
,
,过
的平面交平面
于
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/3b76558d-a962-4c56-95ba-e85d81c720d3.png?resizew=116)
(1)求证:
;
(2)当
为
中点时,求点
到平面
的距离;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad6f8846d4294ae3789a6ddd17af5b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058f36d315245b63a811d5c6f348c17b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c674dc5024374f53920947c4cf4baf11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19bebae04c72b934bfbbf0b4d01f164f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a951292add4574c1debd16800674e1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/3b76558d-a962-4c56-95ba-e85d81c720d3.png?resizew=116)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710c8b60b12f8003109c1d48cdd91e0f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe38c885f29722c433022c4b2ae6211.png)
您最近一年使用:0次
2022-12-02更新
|
761次组卷
|
3卷引用:重庆市永川区永川北山中学校2022年高二上学期期中数学试题
名校
解题方法
2 . 四棱锥
中,底面
为正方形,
平面
,
,E,F分别为PC,AD的中点.
(1)求证:
平面PFB;
(2)求点E到平面PFB的距离.
![](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/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a148e1cc59be85f85f41cafabeae11f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/286377aa-6e11-4312-b128-08b49802423a.png?resizew=148)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78172568aac9805d2ea2d5f742bf80c.png)
(2)求点E到平面PFB的距离.
您最近一年使用:0次
2021-11-09更新
|
258次组卷
|
4卷引用:重庆市永川北山中学校2022-2023学年高二上学期12月月考数学试题
重庆市永川北山中学校2022-2023学年高二上学期12月月考数学试题(已下线)第04讲 空间向量的应用(4大考点)-2022-2023学年高二数学考试满分全攻略(人教A版2019选择性必修第一册)广东省深圳市人大附中深圳学校2021-2022学年高二上学期期中数学试题山东省济宁市实验中学2023-2024学年高二上学期10月月考数学试题
3 . 如图所示,在四棱锥P-ABCD中,PC⊥底面ABCD,
,
,
,E是PB的中点.
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893674887897088/2895068048809984/STEM/807eedb3-7a6b-4d1b-b655-7ebf2014b56f.png?resizew=184)
(1)求证:
平面PAD;
(2)若
,求三棱锥P-ACE的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd3c2e2199cd4565c05b949bc21fc37.png)
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893674887897088/2895068048809984/STEM/807eedb3-7a6b-4d1b-b655-7ebf2014b56f.png?resizew=184)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932a04304f2d4975955d4baabb2deeea.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2899e607479d8d1c47d954ae9ebb7144.png)
您最近一年使用:0次
2022-01-15更新
|
553次组卷
|
2卷引用:重庆市永川北山中学校2023届高三上学期期中数学试题
名校
解题方法
4 . 如图,在三棱柱
中,
是边长为2的等边三角形,平面
平面
,
,
,
为
的中点,
为
的中点.
平面
;
(2)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/696da912e610974f0f437876b3d34ee3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/171429a1afe5bb4ee4cb811af61b1365.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280247d7df395bb9ea78c51e67b458d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7e2ecef1deed1060a1d2ae4bdeba78.png)
您最近一年使用:0次
2021-05-07更新
|
640次组卷
|
5卷引用:重庆市永川北山中学校2022届高三高考仿真数学试题