已知
,
为正数,函数
的值域为
.
(1)若
,证明:
;
(2)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27579696871a3abf8d0f90d4241640e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7908fb46b316b94631dd94bdb3b672f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239ea0e903fbb4c8ce04133b9969578c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b0e403c5f00d0357d3fa30d6c2717c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1ef525e9037c245c964d0ce6f56b98.png)
更新时间:2021-05-21 21:13:34
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe0469b17cb344e7748f8f3def8a0840.png)
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