已知函数
的零点在区间
内,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40776545c2ae0fb8dae5573b72bb6c2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a826cb72ab947f11fbd069055ad99137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
更新时间:2018-02-07 17:03:41
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【知识点】 根据零点所在的区间求参数范围
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【推荐2】已知函数
的零点在区间![](https://img.xkw.com/dksih/QBM/2016/7/22/1572939824873472/1572939830575104/STEM/993a91c3e7e241d0b4f193d87c9f2bb6.png?resizew=56)
,则![](https://img.xkw.com/dksih/QBM/2016/7/22/1572939824873472/1572939830575104/STEM/c024a3e2704d4799aac0c81d0988e65c.png?resizew=25)
____________
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572939824873472/1572939830575104/STEM/d1ec054d39cf4000b46fb71874c66fa2.png?resizew=127)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572939824873472/1572939830575104/STEM/993a91c3e7e241d0b4f193d87c9f2bb6.png?resizew=56)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572939824873472/1572939830575104/STEM/cbd884d01ad44eae951e15cd3128a5e1.png?resizew=45)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572939824873472/1572939830575104/STEM/c024a3e2704d4799aac0c81d0988e65c.png?resizew=25)
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