在数列
中,若
,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a42b7cf61ab8c18dcf4d48152c4981a.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5783f5c758cde23cff7592d685c9cb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a42b7cf61ab8c18dcf4d48152c4981a.png)
更新时间:2020-06-26 16:21:03
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【推荐2】已知函数
在
处的导数值为2,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7e3cd8ce94d4144791c4c9c195d47c9.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7e3cd8ce94d4144791c4c9c195d47c9.png)
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