解答题-问答题 较易0.85 引用1 组卷402
(10分)已知
,
.
(1)若
,求
的取值范围.
(2)是否存在实数
,使得
,若存在,求出
的取值集合,若不存在,说明理由.
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572329372295168/1572329377988608/STEM/e399edebd1cc4125a2984f26cc91abb5.png?resizew=145)
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572329372295168/1572329377988608/STEM/bd7c37b99b624f499046b7b6239516a3.png?resizew=155)
(1)若
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572329372295168/1572329377988608/STEM/a478e5d7c3404e5aae3f342d36131ca9.png?resizew=13)
(2)是否存在实数
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572329372295168/1572329377988608/STEM/a478e5d7c3404e5aae3f342d36131ca9.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572329372295168/1572329377988608/STEM/0f22ee15ff254016990e68006a2def49.png?resizew=69)
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572329372295168/1572329377988608/STEM/a478e5d7c3404e5aae3f342d36131ca9.png?resizew=13)
15-16高一上·四川德阳·阶段练习
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