名校
解题方法
1 . 已知函数
的部分图像如图所示.
![](https://img.xkw.com/dksih/QBM/2018/6/21/1971878880108544/1973990662111232/STEM/428a8292a13641c4aa0a469168d9b838.png?resizew=152)
(1)求函数
的解析式;
(2)若函数
在
上取得最小值时对应的角度为
,求半径为2,圆心角为
的扇形的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68ef3534a32de2e07fd8beb880c8b4c.png)
![](https://img.xkw.com/dksih/QBM/2018/6/21/1971878880108544/1973990662111232/STEM/428a8292a13641c4aa0a469168d9b838.png?resizew=152)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3aae9c8988f4a48db69cad3308942c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
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2018-03-10更新
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1108次组卷
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5卷引用:【全国百强校】吉林省延边第二中学2017-2018学年高一下学期第二次月考数学试题