题目
题型:解答题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224659-72986.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-22733.png)
(Ⅰ)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-18369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-18369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-17999.png)
(Ⅱ)在
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-75554.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-47847.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-54294.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-24829.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-57252.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-49150.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-75554.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-48576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224702-16550.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-18369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224702-18860.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224703-68832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224703-98741.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224703-68280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224704-12235.png)
解析
试题分析:(Ⅰ)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-18369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-18369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-17999.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224659-72986.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-22733.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-18369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-17999.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224704-89996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224704-12656.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224704-55650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-18369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-17999.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224704-63758.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-75554.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-47847.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-54294.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-24829.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-57252.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-49150.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-75554.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-48576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224702-16550.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224702-16550.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-57252.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-57252.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-49150.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224705-61477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224701-48576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224705-93096.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224705-92099.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224704-12235.png)
试题解析:(Ⅰ)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224705-65119.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224705-37772.png)
所以函数
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224700-18369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224706-24258.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224706-83337.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224706-49276.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224706-93137.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224703-68832.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224703-98741.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224703-68280.png)
(Ⅱ)由
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224706-49592.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224707-22263.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224707-15870.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224707-57962.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224707-30262.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224708-81425.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224705-92099.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224708-95810.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224708-74557.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224708-96254.png)
核心考点
试题【设函数,(Ⅰ)求函数的最小正周期,并求在区间上的最小值;(Ⅱ)在中,分别是角的对边,为锐角,若,,的面积为,求.】;主要考察你对同角三角函数的基本关系等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224657-54598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224657-19882.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224657-85558.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224657-85755.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224654-54220.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224654-47259.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224654-75601.png)
A.向右平移![]() | B.向左平移![]() |
C.向右平移![]() | D.向左平移![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224643-21354.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224643-17643.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224643-13142.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224643-92657.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823224643-19007.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823165940-50321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823165940-79406.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823165940-74411.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823165940-23703.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823165940-74411.png)
(2)将函数
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823165940-59435.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823165940-83528.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823165940-95688.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823165940-64644.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823165941-94346.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823165941-86020.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823165931-10391.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190823/20190823165932-81928.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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