名校
解题方法
1 . 已知函数
的部分图象如图所示,将此图象分别作以下变换,那么变换后的图象可以与原图象重合的变换方式有________ .(写出所有正确的序号)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/1/d5c894b3-be02-465e-8149-65273b90288b.png?resizew=275)
①绕着
轴上一点旋转
;
②沿
轴正方向平移;
③以
轴为轴作轴对称;
④以
轴的某一条垂线为轴作轴对称.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6edbf88064be1baa1a49e386541c40b1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/1/d5c894b3-be02-465e-8149-65273b90288b.png?resizew=275)
①绕着
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e7a123c9cc0e058db28841fb0edcf3.png)
②沿
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
③以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
④以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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