已知函数
和
同时满足以下两个条件:
(1)对于任意实数
,都有
或
;
(2)总存在
,使
成立.
则实数
的取值范围是 __________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e207e9542aba79936326737032c7ca67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6df59c6ff2578e4b3940964c12984adb.png)
(1)对于任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0527a896aec4a245945e5edee00deed.png)
(2)总存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd13716ebd82e83717a5be2efcf1dd15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9859a8a70faa48ac557c4e8bced9df5e.png)
则实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2018-12-04 07:20:38
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