名校
解题方法
1 . 已知
,在区间
上有一个零点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
_____________ .若用二分法求
的近似值(精确度0.1),则至少需要将区间等分_______________ 次.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/403505c79a833d696a88f7d6bab0ba56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/741423c8fb45b9944df28d70a9a15746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
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