在平面直角坐标系中,若以原点为中心的双曲线经过旋转变换后为函数
的图象,函数
的定义域为
且
,若
在定义域内存在反函数,则双曲线离心率的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a736cb83ebf8e5dd5607e711c4a9240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
更新时间:2024-05-09 08:37:50
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【知识点】 求双曲线的离心率或离心率的取值范围
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