题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012154-36804.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012154-30064.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012155-17922.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012155-41632.jpg)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012155-23541.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012155-23541.png)
核心考点
举一反三
(1) 求证:A1C⊥平面BCDE;
(2) 若M是A1D的中点,求CM与平面A1BE所成角的大小;
(3) 线段BC上是否存在点P,使平面A1DP与平面A1BE垂直?说明理由
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012133-59210.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012133-79465.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012134-14514.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012134-38963.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012134-42613.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012134-44767.png)
(1)求直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012134-72321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012135-82824.png)
(2)用
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012135-18880.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012135-82824.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012135-53524.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012135-84180.png)
(3)若
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012136-37487.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012136-23862.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012136-65634.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012136-77764.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012137-57654.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012137-33130.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012137-78786.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012137-15040.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012117-88746.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012118-51381.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012118-41861.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012118-30402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012118-15701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012119-28863.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012119-61950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012119-49824.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012119-88457.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012120-97089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012120-13499.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012054-33439.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012054-92925.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012054-92925.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012054-49569.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012055-99973.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012055-41792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012055-68369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012055-10719.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012055-69845.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012056-29227.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012056-27609.png)
(Ⅰ)求异面直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012056-24787.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012056-61095.png)
(Ⅱ)在线段
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012056-29227.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012057-16197.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012057-33611.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012057-82511.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012057-73122.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022012058-98382.png)
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