题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120112-16872.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120112-59422.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120112-16640.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120112-16872.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120113-12076.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120112-16872.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120113-85179.gif)
(1)以向量
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120113-41740.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120114-16021.gif)
(2)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120114-50267.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120114-73931.gif)
(3)证明:平面ANC⊥平面BDMN
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120114-21138.jpg)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120112-16640.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120112-16872.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120113-12076.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120112-16872.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120115-59302.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120115-68369.jpg)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120115-11145.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120115-18009.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120114-73931.gif)
又
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120112-16640.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120112-16872.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120113-12076.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120112-16872.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120116-56629.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120114-73931.gif)
所以平面
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120116-32180.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120114-73931.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120114-50267.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120114-73931.gif)
(3)略……4分
解析
核心考点
试题【(本小题满分12分)如图,四边形是边长为1的正方形,平面,平面,且(1)以向量方向为侧视方向,侧视图是什么形状?说明理由并画出侧视图。(2)求证:平面;(3)证】;主要考察你对空间向量的基本概念等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120101-69828.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120101-51165.png)
A.![]() | B.![]() | C.![]() | D.![]() |
(1)求证:PC⊥面AEF.
(2)若面AEF交侧棱PD于点G(
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120054-27059.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120055-59376.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120045-21911.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120045-27136.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120045-64539.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120045-48852.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120045-28557.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120045-89292.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120046-36566.gif)
(Ⅰ)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120046-47546.gif)
(Ⅱ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120046-16785.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120046-79677.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120046-64798.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120046-63728.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120037-57799.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120037-72711.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120037-88500.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120038-75008.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120037-57799.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120037-72711.gif)
_______.
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120031-39441.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120032-64193.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120032-82745.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120032-70347.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120033-11027.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120033-78902.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120033-93585.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120033-78842.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105120034-39407.jpg)
最新试题
- 1如图所示的是公路检查站常闭型栏杆的示意图,当检查合格后,工作人员在A端施加一个向下的力使栏杆升起,车辆放行.此种栏杆实质
- 2如图,请按照要求回答问题:(1)数轴上的点C表示的数是 ( );线段AB 的中点D 表示的数是( ),(2
- 3如图甲所示电路中,画圈处接的是电压表或电流表,在图上注明电压表、电流表符号,并标出接线柱的正负.请用笔画线代替导线,将图
- 4人的眼睛有黑色、蓝色之分,与此相关的结构是___________。外界物体产生的光线,最终在____________上形
- 5下列不属于缓慢氧化的是( )A.动物呼吸B.酿造米酒C.食物腐败D.红磷燃烧
- 6— Who is knocking at the door? — _______. [
- 7数轴上与表示﹣1的点A距离3个长度单位的点所表示的数是( ).
- 8第四周期过渡元素Mn、Fe、Ti可与C、H、O形成多种化合物。(1)下列叙述正确的是 。(填字母)A.CH2O
- 9以下说法正确的是[ ]A.一副扑克牌中,随意抽取一张是红桃K,这是必然事件B.一个游戏的中奖率是1%,说明买10
- 10下列单项式次数为3的是[ ]A.3abcB.2×3×4C.x3yD.52x
热门考点
- 1若2x5ayb+4与-x1-2by2a是同类项,则ba的值是( )A.2B.-2C.1D.-1
- 2小明在解关于x、y的二元一次方程组时得到了正确结果,后来发现“”“”处被墨水污损了,请你帮他找出、处的值分别是[
- 32009年8月11日,国务院总理温家宝代表国务院向________颁发了任命他为中华人民共和国澳门特别行政区第三任行政长
- 4泰新中学积极开展STS教育社会实践活动,利用双休日组织初三学生到集镇上宣传安全用电知识。在学生自制的展板上有如图所示的两
- 5— Could you tell me ? — Sorry, I don"t know. [
- 6第四届两岸经贸文化论坛2008年12月21日下午在上海闭幕。在与台湾同胞的交流中,大家感受到:中华文化在台湾根深叶茂。台
- 7如图,ABCD是⊙O的两条弦,延长AB、CD交于点P,连接AD、BC交于点E,∠P=30°,∠ABC=50°,求∠A的度
- 8已知求:。
- 9如图,有一直角墙角,两边的长度足够长,在P处有一棵树与两墙的距离分别是am(0<a<12)、4m,不考虑树的粗细.现在想
- 10We have four classes in the morning, and ______ every two cl