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1 . 已知函数
.
(1)若
是单调函数,求
的取值范围;
(2)若
存在两个极值点
,且
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/922d8673c6ecde8bf8ecc1e2eea18566.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d85793069f936ecef66ccd87f3e83d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f502d481e21d1288fde70a18e3ee451.png)
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2020-08-18更新
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888次组卷
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8卷引用:河南省洛阳市2018-2019学年高二5月期末数学(理)试题