函数
的图象经过定点______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae3b00544d456a0d61847c144cae3c1.png)
更新时间:2023-01-06 18:55:02
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【知识点】 对数型函数图象过定点问题
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【推荐1】已知函数
的图象恒过定点
,若点
也在函数
的图象上,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85aca8a40cefecbd47ec2615f87f8079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b1371913f2a6cc346bd54da8b6ad2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
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【推荐2】已知直线
经过函数
(
且
)的定点,其中
,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe751a3bfee99b6a349eea5749c2b9e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ffe0fe4bfdc1af3921e8b27bb9674a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a916811b6ae474bce19ce732cf401e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27e62ba44cbfec6823ebc1f0c7457fb.png)
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