设
且
,
,已知函数
.
(1)当
时,求不等式
的解;
(2)若函数
在区间
上有零点,求
的取值范围.
![](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/995ec593baa4ef50b6d87c78380953d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086244b1b7904e6d967a8c0daa826f57.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1d86b4ad722d7b720603eba9d330fd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2203b1906da60b21c8b7bd27aa8f209c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/040d7a53373b15ed20cb8bce3996399f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
2021·上海虹口·二模 查看更多[5]
上海市虹口区2021届高三二模数学试题(已下线)考向07 对数函数-备战2022年高考数学一轮复习考点微专题(上海专用)(已下线)专题3.10 《函数》单元测试卷 - 2022年高考数学一轮复习讲练测(新教材新高考)(已下线)第三章 函数专练14—函数与方程-2022届高三数学一轮复习(已下线)考点07 对数函数的图象与性质-备战2022年高考数学典型试题解读与变式
更新时间:2021-05-10 20:32:08
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【推荐1】已知函数
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(1)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/263fa99fe5e95fe63ad676226b10d811.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7a1d739890a8951586e23b78b035bc.png)
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