名校
1 . 已知定义在区间
上的函数
.
(1)求函数
的零点;
(2)若方程
有四个不相等的实数根
,
,证明:
;
(3)设函数
,
,若对任意的
,总存在
,使得
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79c6fa8b04f872c6d73e11b4ca499035.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08072409f95d484e8d9b382a2263cd9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d16df3112ff53691d26bca57f85cdc3b.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df0271f42d3ef247f8cf035ac8d9fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19339e3904e9541ff26b30ae5f1242b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f985718530cae9003dd401c044ef3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d8d908773b59dd4e5056341faa2a962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6854813c6c6289f1a56f9ea9a45a023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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2022-11-05更新
|
830次组卷
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3卷引用:8.1 二分法与求方程近似解 (2)