已知
,
,若有且只有一组数对
满足不等式
,则实数
的取值集合为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ecd6c836ea6552b5d8f30db1abbc83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f142f51af74a591255d2cba7b14396c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5006c39a681747e6653e93589b5a467b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a104d2f91774c27a0810d20bd4799bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2024-06-25 09:29:29
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解题方法
【推荐1】
是幂函数
图象上的点,将
的图象向上平移
个单位长度,得到函数
的图象,若点
(
,且
)在
的图象上,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c86901884c5451a324ce393420c2fc4.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b9b9dcaf4a16aa01832b540679256b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e719252ceff26414b576dcf546f39f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
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【推荐2】唐代诗人李颀的诗《古从军行》开头两句说:“白日登山望烽火,黄昏饮马傍交河.”诗中隐含着一个有趣的数学问题——“将军饮马”,即将军在观望烽火之后从山脚下某处出发,先到河边饮马后再回军营,怎样走才能使总路程最短?在平面直角坐标系中,设军营所在区域为
,若将军从点
处出发,河岸线所在直线方程为
,并假定将军只要到达军营所在区域即回到军营,则“将军饮马”的最短总路程为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb6aa0aa770479bba70a543a7cfdff7.png)
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【推荐1】设函数
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处的切线所围成的封闭区域,则
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