题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044221-52123.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-94551.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-90408.gif)
求证:(1)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-71456.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-87335.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-38242.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-99880.gif)
![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-46840.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-90687.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044223-23902.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044223-55143.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-87335.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044223-48023.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-87335.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044223-79701.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-87335.gif)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044223-78430.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044224-77780.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-99880.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044224-60255.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-99880.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044224-66949.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044222-99880.gif)
核心考点
举一反三
则另一个平面也垂直于第三个平面.
已知:如图,
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044213-69457.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044213-67856.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044213-16640.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044213-23830.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044213-91926.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044214-37457.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044214-14694.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044208-87594.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044209-58056.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044159-36411.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044159-45771.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044200-53224.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044200-28628.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044200-82870.gif)
求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044201-85370.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044201-24195.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044148-60978.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044148-33869.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044148-60978.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044149-68565.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044149-25889.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044149-67305.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044149-49254.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044149-49254.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044150-65595.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044150-49434.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044150-11258.gif)
求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044150-35786.gif)
![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044135-84437.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044136-20888.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044136-85054.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044136-34379.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044137-25295.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044137-38786.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044137-84317.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044137-72192.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044137-85673.gif)
求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044138-56357.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106044138-78743.gif)
![]() |
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