题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013327-37359.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013327-33822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013328-58832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013328-41703.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013328-27326.png)
求证(1)直线
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013328-41692.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013329-99071.png)
(2)平面
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013329-99123.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013329-49299.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013329-99243.png)
答案
解析
试题分析:(1)本题证明线面平行,根据其判定定理,需要在平面
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013329-99071.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013330-39771.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013330-92197.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013330-39771.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013329-99071.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013330-61535.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013329-99071.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013330-51081.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013330-61535.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013329-99243.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013330-63540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013331-69837.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013331-86104.png)
试题解析:(1)由于
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013331-98340.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013331-98804.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013330-92197.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013332-38600.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013332-73192.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013332-15125.png)
(2)由(1)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013330-92197.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013332-57861.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013333-69454.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013333-79169.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013333-68940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013333-99096.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013334-66288.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013334-50608.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013334-61892.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013334-71349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013331-69837.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013334-77967.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013329-99243.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013335-85715.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013335-30181.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013329-99123.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013329-99123.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013329-49299.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013329-99243.png)
【考点】线面平行与面面垂直.
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013315-84891.png)
(1)证明:AC1⊥A1B;
(2)设直线AA1与平面BCC1B1的距离为
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013316-33769.png)
如图,四棱锥
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013305-95619.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013305-50181.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013305-33253.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013306-10416.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013306-49566.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013306-61835.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013306-66059.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013307-31045.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013307-56819.png)
(1)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013305-50181.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013307-14496.png)
(2)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013307-84389.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013308-95312.png)
在如图所示的多面体中,四边形
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013254-74486.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013255-93298.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013255-92713.png)
(Ⅰ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013255-59699.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013255-37559.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013255-93298.png)
(Ⅱ)设
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013256-48189.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013256-63192.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013256-20492.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013256-64738.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013257-18892.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013257-10277.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013257-90939.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013257-60517.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013242-76050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013242-70392.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013242-97372.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013243-55330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013243-85383.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013242-70392.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013243-10268.jpg)
证明:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013244-69217.png)
若
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013244-29597.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013244-90373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013242-76050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013229-81153.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013230-18618.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013230-82874.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013230-61958.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013230-16495.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013231-59462.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013231-60368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013231-46799.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013231-46498.png)
(1)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013232-85329.png)
(2)求直线
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013232-73179.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106013232-47888.png)
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