题目
题型:解答题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165831-29425.gif)
(1)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165831-74264.gif)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165831-24928.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165831-74264.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165831-89257.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165832-54303.gif)
则
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165831-74264.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165832-89223.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165832-53794.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165831-74264.gif)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165831-24928.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165832-23229.gif)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165833-48607.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165833-41780.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165833-14569.gif)
所以
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165833-65357.gif)
解析
核心考点
试题【(12分)设函数.(1)求函数的最小正周期.(2)当时,的最大值为2,求的值, 】;主要考察你对任意角三角函数的概念等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165746-75146.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165742-41174.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165742-21934.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165743-56225.gif)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165743-93969.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165742-21934.gif)
(2)将函数
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165743-23256.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165743-51816.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165743-34847.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165744-18526.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165744-18526.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165744-31716.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165643-64169.png)
(I)化简
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165643-52777.png)
(II)当
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165644-28579.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165623-35616.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165623-64152.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165623-59909.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165623-97257.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165624-39234.gif)
(1)求角
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165624-87786.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165624-49213.gif)
① 函数
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165455-25936.gif)
②函数
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165455-77980.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165455-22245.gif)
③对于任意实数x,有
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165456-45429.gif)
则
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165456-94973.gif)
④若对
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165456-35958.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822165456-56872.gif)
其中真命题的个数为_______________.
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