名校
1 . 牛顿在《流数法》一书中,给出了高次代数方程的一种数值解法一牛顿法.首先,设定一个起始点
,如图,在
处作
图象的切线,切线与
轴的交点横坐标记作
:用
替代
重复上面的过程可得
;一直继续下去,可得到一系列的数
,
,
,…,
,…在一定精确度下,用四舍五入法取值,当
,
近似值相等时,该值即作为函数
的一个零点
.若要求
的近似值
(精确到0.1),我们可以先构造函数
,再用“牛顿法”求得零点的近似值
,即为
的近似值,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c6cc1e8086c67bed8f50f2bbb19c79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efbc757957fe3ec6c6e6671d9da2d3a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9f851f16517ca9eaa79776cc3d559b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bde9d25ffb5af342be0b4968b7b1b34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9f851f16517ca9eaa79776cc3d559b.png)
A.对任意![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.当![]() ![]() |
D.无论![]() ![]() ![]() |
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2021-08-07更新
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1418次组卷
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9卷引用:甘肃省临洮中学2023-2024学年高二下学期第一次月考数学试题