已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf418443e9667da5891ecdff5b87a720.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30f51284471e3aa481017bb70f46fdf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf418443e9667da5891ecdff5b87a720.png)
更新时间:2021-01-15 17:06:00
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【知识点】 求分段函数值
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填空题-单空题
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较易
(0.85)
解题方法
【推荐1】函数
,则![](https://img.xkw.com/dksih/QBM/2016/11/17/1573154978676736/1573154984509440/STEM/bb5a0a36d81b4dd2ba47ab07d648db20.png?resizew=79)
______ .
![](https://img.xkw.com/dksih/QBM/2016/11/17/1573154978676736/1573154984509440/STEM/4365fbd41d69470daea511e872d8b07d.png?resizew=160)
![](https://img.xkw.com/dksih/QBM/2016/11/17/1573154978676736/1573154984509440/STEM/bb5a0a36d81b4dd2ba47ab07d648db20.png?resizew=79)
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