设函数
,若
则实数
=__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb535cc69e1e5deab4ff0eb5fc729d9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823637ed6192eff3e77b7f3855dfcbc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
22-23高一上·广东广州·阶段练习 查看更多[2]
更新时间:2022-10-30 14:23:01
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【知识点】 已知分段函数的值求参数或自变量解读
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解题方法
【推荐1】已知函数
的表达式为
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc066e12a1a493f12b0a389e4d67208.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d0b027eb75101418cfe40dbd8f7e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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