题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025529-54141.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025529-94537.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025529-16505.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025529-68462.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025529-92320.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025530-10486.jpg)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025530-95482.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025530-97955.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025530-92913.png)
(2)点
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025530-77666.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025530-20929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025530-59191.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025531-45298.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025531-89639.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025531-68542.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025531-83176.png)
解析
试题分析:(1)要证平面
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025532-77343.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025532-64402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025532-84513.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025532-65911.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025533-76631.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025533-19071.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025530-77666.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025530-20929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025530-59191.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025531-89639.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025531-68542.png)
需要求出
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025533-96792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025533-71659.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025533-82178.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025534-24475.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025534-39772.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025534-96196.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025534-45993.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025535-26741.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025534-39772.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025535-97536.png)
试题解析:(1)连
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025535-90135.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025535-21278.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025536-14041.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025536-58598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025536-13599.png)
又
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025536-14528.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025536-58598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025537-54081.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025537-11554.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025537-97441.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025536-58598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025533-19071.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025535-21278.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025537-31748.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025537-11554.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025537-97441.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025538-22484.png)
又
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025538-56633.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025536-58598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025532-84513.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025532-65911.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025538-67046.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025532-64402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025536-58598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025532-77343.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025532-64402.png)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025538-12124.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025534-39772.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025535-97536.png)
证明:若
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025534-39772.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025535-97536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025539-25175.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025539-50223.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025539-79467.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025539-79578.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025539-34736.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025534-45993.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025535-26741.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025540-45379.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025535-21278.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025534-39772.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025535-97536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025534-39772.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025540-56210.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025540-43808.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025540-43808.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025540-42171.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025541-27869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025536-58598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025534-39772.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025534-96196.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025541-25986.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025541-56647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025536-58598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025538-12124.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025513-85490.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025513-85490.png)
A.1个 | B.1个或无数个 |
C.0个或无数个 | D.0个、1个或无数个 |
A.底面是正方形,有两个侧面是矩形 |
B.每个侧面都是全等矩形的四棱柱 |
C.底面是菱形,且有一个顶点处的三条棱两两垂直 |
D.底面是正方形,有两个相邻侧面垂直于底面 |
A若a∥M,b∥M,则a∥b
B若a∥M,b⊥a,则b⊥M
C若a
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025500-95778.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025500-95778.png)
D若a⊥M,M∥N,则a⊥N
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025448-11390.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025449-13603.jpg)
①
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025449-50711.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025449-17512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025449-96525.png)
②
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025449-50711.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025449-17512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025450-12327.png)
③一个平面
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025450-61010.png)
④一个平面
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025450-61010.png)
⑤平面
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025450-61010.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025450-61010.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025450-55640.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025450-89456.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025440-70144.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025440-23876.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025440-72860.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025441-11865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025441-52549.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025441-67433.jpg)
(1)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025442-81836.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025442-17638.png)
(2)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025442-51105.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106025442-90527.png)
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