题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020655-37883.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020655-53579.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020655-44918.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020656-37319.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020656-90827.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020656-37476.png)
解析
核心考点
试题【设向量与向量的夹角为,且,则 】;主要考察你对平面向量的基本定理及坐标表示等知识点的理解。[详细]
举一反三
已知点
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020640-41281.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020640-60839.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020640-43669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020640-43038.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020641-38827.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020641-66345.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020641-18037.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020640-43038.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020641-47220.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020641-25595.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020642-14405.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020640-43038.png)
(2)求△
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020642-72664.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020635-69199.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020635-54892.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020636-92237.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020635-69199.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020636-63414.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020632-28778.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020632-51157.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020632-50905.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020632-46521.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020628-99430.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020628-49588.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020628-99430.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020628-49588.png)
如图M为的△ABC的中线AD的中点,过M的直线分别与边AB,AC交于点P,Q,设
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020622-48902.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020623-62121.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020623-65676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020623-38698.png)
(1)求函数y=f(x)的表达式;
(2)设g(x)=x3+3a2x+2a,(x∈[0,1]),若对于任意x1∈[
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020624-80950.png)
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