名校
解题方法
1 . 已知函数
经过点
,___________.
①若
是幂函数,求函数
的最小值;
②若
是指数函数,求函数
的最大值;
③若
是对数函数,求函数
的值域.
请从三个选项中选一个填在横线,并解决相应的问题.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3247f03357462fec934f37c65ebdc77e.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f82e9ece5facd0a041e1c5f0b34e78c.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd09ab14cbcb3aca85ce7f5336b34e70.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf7a020f7fa131b660e352c77b52b627.png)
请从三个选项中选一个填在横线,并解决相应的问题.
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