已知函数
.
(1)若
,求a的取值范围;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad04a81b8c310f929f1d19088501a171.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eabb24afc20f5b8eb98d8c23f92c4dc9.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5475313631cf868d1338b1820bf450.png)
更新时间:2023-10-26 10:26:19
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(1)当
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(2)若关于
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(1)当
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(2)当
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(1)当
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(2)求证:
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(3)在(1)的条件下,设
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