已知
,
,
.证明:
(Ⅰ)
;
(Ⅱ)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4a7c5d8af906e6cadc4316d236437b9.png)
(Ⅰ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d06f71db28c0979c4b4235601a987e07.png)
(Ⅱ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54c92708c251f0519798d00b9a0717c0.png)
更新时间:2018-06-09 07:00:31
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【推荐1】已知函数
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(1)若
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【推荐2】选做题:任选一道,两题均做只以(I)的解答计分.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b8911191619ac7fbf14722d6841f47.png)
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【推荐2】已知
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