名校
1 . 已知函数
,
.
(1)求
的最大值m;
(2)若
,
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a7809ee1fb390e90806aba2ad66453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd4d30083446e8a24e22c97e05acb2d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)若
![](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/22d7b3f8b5cdb3eb7aa97ba47372274e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018c0732e522086f2958f146914b93d0.png)
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2020-05-06更新
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235次组卷
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3卷引用:湖南省名校2018-2019学年高二下学期期末联考数学(文)试题