题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052342-97810.png)
(Ⅰ)求
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052343-26819.png)
(Ⅱ)在△
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052343-39037.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052343-11720.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052343-60837.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052344-94184.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052343-39037.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052344-77027.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052344-77444.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052344-10545.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052344-42876.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052345-46579.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052342-97810.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052345-92975.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052345-66594.png)
即
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052346-22255.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052346-98529.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052346-84100.png)
所以,
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052343-26819.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052346-82442.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052346-73591.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052346-94843.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052347-14971.png)
(Ⅱ)由
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052344-77027.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052347-59591.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052347-11686.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052347-38561.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052347-73605.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052344-77444.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052344-10545.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052344-42876.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052348-41344.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052348-42034.png)
解之得
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052348-21915.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052348-42348.png)
解析
核心考点
试题【已知函数.(Ⅰ)求的最小正周期和最大值;(Ⅱ)在△中,分别为角的对边,为△的面积. 若,,,求】;主要考察你对正弦函数的图象与性质等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052335-27968.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052335-80172.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052335-41796.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052325-77260.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052325-51722.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052325-98348.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052325-26138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052326-45113.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052326-99377.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052316-53494.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052317-32477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052317-90830.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052317-28189.png)
(1) 求角
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052317-42087.png)
(2) 求
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052317-21382.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052258-40975.png)
A.图象C关于直线![]() |
B.图象C关于点(![]() |
C.函数![]() |
D.由![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052243-54235.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052243-91281.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052244-42908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052244-97885.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052244-10402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052244-58456.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190911/20190911052245-70091.png)
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