名校
1 . 牛顿迭代法是牛顿在17世纪提出的一种在实数域和复数域上近似求解方程的方法.比如,我们可以先猜想某个方程
的其中一个根
在
的附近,如图所示,然后在点
处作
的切线,切线与
轴交点的横坐标就是
,用
代替
重复上面的过程得到
;一直继续下去,得到
,
,
,……,
.从图形上我们可以看到
较
接近
,
较
接近
,等等.显然,它们会越来越逼近
.于是,求
近似解的过程转化为求
,若设精度为
,则把首次满足
的
称为
的近似解.
,
.
(1)当
时,试用牛顿迭代法求方程
满足精度
的近似解(取
,且结果保留小数点后第二位);
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b7bff9b2431134f7683a9cc4e68acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8559f5db9b978cb2bd290dbce7268629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](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/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711c92626a97e6b778b3aa86e663ee97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d5119bad37a65c4f6a27dad01d8c8b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bae9cd7143845a319b86a164aeedda7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b7bff9b2431134f7683a9cc4e68acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa2ccd56b2387c2e7d332640e1f070a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c861e3728c51f2f447c24880cb7f0f4d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb61edab1515abf67b1aa36099ad7a46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-09-10更新
|
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9卷引用:贵州省贵阳市2024届高三上学期8月摸底考试数学试题
贵州省贵阳市2024届高三上学期8月摸底考试数学试题(已下线)第三篇 以学科融合为新情景情境3 与教材阅读材料融合(已下线)模块四 专题7 新情境专练(拔高)(已下线)微考点2-5 新高考新试卷结构19题压轴题新定义导数试题分类汇编云南省红河州开远市第一中学校2023-2024学年高二下学期3月月考数学试题江苏省南通市海安高级中学2023-2024学年高二下学期阶段检测(一)数学试题(已下线)模块四 期中重组卷2(江苏南通)(苏教版)(高二)(已下线)湖北省七市州2024届高三下学期3月联合统一调研测试数学试题变式题16-19(已下线)【一题多变】零点估计 牛顿切线
名校
解题方法
2 . 如图,
、
两点分别在
、
轴上滑动,
,
为垂足,
点轨迹形成“四叶草”的图形,若
,则
的面积最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d718b208bce3e2778a466b2ed8d5312f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532d9de08698f61d7c010805c61a4ec5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/13/e1fb2e48-2e66-4719-a220-d76feef25a5e.png?resizew=208)
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2023-09-10更新
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3卷引用:贵州省贵阳市2024届高三上学期8月摸底考试数学试题
解题方法
3 . 定义:若椭圆
上的两个点
,
满足
,则称A,B为该椭圆的一个“共轭点对”,记作
.已知椭圆C:
上一点
.
(1)求“共轭点对”
中点B所在直线l的方程.
(2)设O为坐标原点,点P,Q在椭圆C上,且
,(1)中的直线l与椭圆C交于两点
.
①求点
,
的坐标;
②设四点
,P,
,Q在椭圆C上逆时针排列,证明:四边形
的面积小于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3170fac2bc69eb892f933884eab77a30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e82db0c7d2c362cf4a70027aaa19be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ab5ed3dd54f42da747b01afdb7b031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50edfb9ed0d50d6f35ad6a130208d307.png)
(1)求“共轭点对”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e82db0c7d2c362cf4a70027aaa19be.png)
(2)设O为坐标原点,点P,Q在椭圆C上,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a9ab90788bfa77a7287d14ce54efb02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d6bfbdd01cbd00209f89e5d703f0caa.png)
①求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
②设四点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa3227c1743747bfe46953dc2280792d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6093eebca8f3ff82ce9298feb197e955.png)
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4 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233aa8bb190d5535f84eade0cfbc6b95.png)
(1)若
,
,
,请比较a,b,c的大小;
(2)若函数
有两个零点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233aa8bb190d5535f84eade0cfbc6b95.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822ccdf28e62c595d1f0337b18d70266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ba48368ed6dd4b0f6d49b30113de0f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a90f10037c5230d4281abb93c9179e4.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/786999ff39b91fac93044fb70679be5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b67a008cbc20e42a317acfd632a8052.png)
您最近一年使用:0次
2022-08-22更新
|
552次组卷
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2卷引用:贵州省遵义市新高考协作体2023届高三上学期入学质量监测数学(理)试题