名校
1 . 已知函数
的定义域是
,若对于任意的
、
,当
时,都有
,则称函数
在
上为非减函数.
(1)判断
,
与
,
是否是非 减函数?
(2)已知函数
在
上为非减函数,求实数
的取值范围;
(3)已知函数
在
上为非减函数,且满足条件:①
,②
,③
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28e384ba050b238e11f7c74d3002aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ee7abd882ba99660bca68ebf544cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/396bd0fbf733d7915987613331e71bff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66ef59c3970f3581a5ea29e21fd564d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc66d13a3e4e34eed3b5ba40f1d7e1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66ef59c3970f3581a5ea29e21fd564d.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7efcfb89b85522e8e857760251695075.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7242b2ab643f9470da77e29d043b893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e0a95a9ce6d599113d73ab580604a14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b26b81cec095a462a20ca67ae3605a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e0a5051a1ff9a4acc9080a06a4d9b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a12727c675e9a56b34c6f8a39db220.png)
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2020-12-25更新
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