题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105195004-46284.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105195004-74701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105195004-85024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105195004-89539.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
答案
解析
试题分析:由已知得
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105195006-67879.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105195006-69290.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105195004-85024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105195004-89539.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105195005-16481.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105195005-83989.png)
核心考点
试题【已知,且.若, 则的值为A.B.C.D.或】;主要考察你对空间向量的直角坐标运算等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194956-86698.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194956-21854.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194957-24528.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194957-87170.png)
A.
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194957-40058.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194957-20267.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194958-23427.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194958-14795.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194951-81690.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194951-71660.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194951-12412.png)
A.![]() | B.1 | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194943-69368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194943-52739.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194935-70801.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194935-82858.png)
(1)如果点A的纵坐标为
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194935-99273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194935-74876.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194936-20379.png)
(2)已知点C(
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194936-64697.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194936-82280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194936-13974.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194925-66307.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194925-60062.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194926-73003.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194926-39431.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194926-61839.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194926-36834.png)
(2)若将
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194926-61839.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194926-77366.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194926-51294.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194926-63357.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194926-51104.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194926-51104.png)
(3)若
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194926-57280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105194926-34604.png)
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