(1)(i)证明:
;
(ii)证明:
时,
;
(2)若关于x的不等式
恒成立,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e78efa4f9ec3556ab212a62c447ae66.png)
(ii)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e22c019aa1fa909e1186ae4345d043d.png)
(2)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2696ef609a2cc811aaf428efcb91958.png)
更新时间:2021-07-30 13:28:57
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