写出一个具有性质①②③的函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4c958edde6a8a668f213308174be8f3.png)
____________ .
①
的定义域为
;
②
;
③当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4c958edde6a8a668f213308174be8f3.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9626dc41063c34f4243b5a637668b0.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8acc16ed1bf8d583f9b5a01a26ae5771.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cbb8ddf37d707714f2eb6fe1e61fac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa378d9dfc178c8bccb355bda511fcd.png)
2022·湖南长沙·二模 查看更多[10]
湖南师范大学附属中学2022届高三下学期二模数学试题重庆市第八中学校2022届高三下学期调研检测(十四)数学试题广东省深圳市光明区高级中学2022届高三模拟(二)数学试题(已下线)专题15 单调性问题(已下线)专题14 对数和对数函数-2023届高考数学一轮复习精讲精练(新高考专用)(已下线)第40练 导数在研究函数中的应用广东省普宁市华美实验学校2023届高三上学期第一次月考数学试题山东省枣庄市滕州市滕州市第二中学2022-2023学年高三上学期11月月考数学试题(已下线)专题15 单调性问题-3(已下线)第二章 函数的概念与性质 第八节 对数函数
更新时间:2022-05-07 10:33:25
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【推荐1】已知函数
是定义在R上的奇函数,当
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,且
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【推荐2】计算![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a931306314e8e96076134c172931a7f9.png)
_________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6c2870b5a6cb7e0d2209933c1e828a.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a931306314e8e96076134c172931a7f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6c2870b5a6cb7e0d2209933c1e828a.png)
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【推荐1】
,当
;
,则
____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d57482dd07cd65af499aff1fb19662de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b872404743ef6de122cad8b3118fe1cf.png)
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【推荐2】已知函数
,且
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___________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e27167f3fbb739e8bbf11065196cf59.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e349f49908801a73999320f7a49820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57457379efecec3a8f98377bc5c65d5.png)
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【推荐1】已知函数
,
,则下列说法错误的是______
①
存在极值;②
存在最小值;③
无解;④
总成立.
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①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2e0bb6d63b7bcaee92a470d58cc399.png)
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【推荐2】已知
,若函数
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![](https://img.xkw.com/dksih/QBM/2017/2/9/1625062118719488/1625062119219200/STEM/c2193b6133dc41cf85bd14b8721beb69.png?resizew=96)
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【推荐3】已知定义在
上的偶函数
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