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1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7b9be02bbdfc271cd12b9d10ec8ddb.png)
,且
.
(1)求
的单调递减区间;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7b9be02bbdfc271cd12b9d10ec8ddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d7e71a76137e9eba37864f57c57321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447ae9234a32030494dde471e5d8d10a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27d22306dbb5944ae0e026c0a464ab2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5aa2deb22fd5629ffd489919ba78fc.png)
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2019-03-20更新
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5卷引用:山西省吕梁市兴县2024届高三上学期9月月考数学试题