题目
题型:不详难度:来源:
(文科)已知
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071124-93279.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071124-69977.png)
⑵ 异面直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071124-40526.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071125-96514.png)
⑵ 四面体
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071125-73501.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071125-63967.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071125-20163.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071126-14983.png)
∴ 异面直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071124-40526.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071125-96514.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071126-24617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071126-56302.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071126-53601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071126-77503.png)
∴ 异面直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071124-40526.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071125-96514.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071127-49913.png)
⑵ 连
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071127-17015.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071127-50202.png)
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071107-91171.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071107-48544.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071107-57444.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071107-37823.png)
⑴设
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071108-91289.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071108-12949.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071108-17373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071108-61705.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071109-95212.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071109-76684.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071109-87067.png)
⑵若点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071109-47894.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071109-53913.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071110-28818.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071107-91171.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071110-80038.png)
如图,在四棱锥
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071053-34029.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071054-89832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071054-44353.png)
(1)证明
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071054-83848.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071054-72812.png)
(2)求异面直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071055-65004.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071055-50745.png)
(3)求二面角
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071055-97431.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071055-86844.png)
在正四棱柱
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071043-38787.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071043-11083.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071043-15464.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071044-64749.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071044-86483.png)
(文)(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071044-22627.png)
(2)求异面直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071044-78189.png)
(理)(1)求异面直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071044-78189.png)
(2)求点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071045-13662.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071045-58694.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071045-48959.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071035-17909.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071035-46580.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071036-16339.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071036-33507.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071036-37751.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071036-98025.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071037-91782.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071037-69125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071037-57329.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071037-18569.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071038-84714.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071038-56738.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071038-83617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071038-21682.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022071028-16548.png)
A.A![]() ![]() ![]() | B.A![]() ![]() ![]() |
C.A![]() ![]() ![]() | D.A![]() ![]() ![]() |
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