函数
的图像如图所示,则其解析式为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bf186e30b03e7a2e2cb79838755af50.png)
![](https://img.xkw.com/dksih/QBM/2017/5/20/1690974916067328/1691882291724288/STEM/689180134fb84af7bf43ee14a366cc8d.png?resizew=266)
更新时间:2017-05-21 18:46:14
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【知识点】 由图象确定正(余)弦型函数解析式解读
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【推荐1】如图,函数y=2sin(
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【推荐2】已知函数
的部分图象如图所示,则函数
的解析式为_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb99c6441405726bd58734360911eaeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/2022/7/22/3027928911282176/3030210845253632/STEM/9a9bc35d7d3146af97849a76d07ea61f.png?resizew=223)
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