题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081910-11387.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081910-47614.gif)
(Ⅰ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081910-59592.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081910-54890.gif)
(Ⅱ)设
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081911-58942.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081911-92134.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081911-13492.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081911-45280.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081911-79094.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081911-10863.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081911-23370.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081912-30045.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081912-45684.gif)
(Ⅱ)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081912-10676.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081912-56543.gif)
又
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081912-19169.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081912-83817.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081911-45280.gif)
核心考点
试题【(本小题满分10分)已知向量,。(Ⅰ)若,求的值; (Ⅱ)设,求的取值范围.】;主要考察你对平面向量数量积的意义等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081904-75721.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081904-71192.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081904-15019.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081905-49621.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081905-65423.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081905-16743.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081900-92171.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081900-35760.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081901-18416.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081901-82918.gif)
A、
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081901-93879.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081901-40946.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081902-76668.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081902-74836.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081855-57899.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081855-71795.gif)
(Ⅰ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081855-19977.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081855-33412.gif)
(Ⅱ)设
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081855-34111.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081855-53262.gif)
已知向量
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081849-30554.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081850-31669.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081850-98829.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081850-44906.gif)
A.
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081851-25175.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081851-17525.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081851-52649.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081851-82032.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081846-28122.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081846-62282.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104081846-11547.gif)
A.3 | B.![]() | C.![]() | D.![]() |
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