已知函数
.
(1)当
时,证明:
;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62bb88768af2043cfdaedba3b0c7df89.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fae93e5f6eb58225859ff6bd8b2411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6fdc20fbd8eb00325aff43ea965ff1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/370a4e6c6e2261c2fc7173db3fe6ccdb.png)
更新时间:2024-03-06 02:03:54
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【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e227a02e3ebd1c1dad193ebc47f288c.png)
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(1)当
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(2)求证:对于任意的正整数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b4e7aafb01b2104404fc9f0e5205c2.png)
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