名校
1 . “以直代曲”是微积分中的重要思想方法,牛顿曾用这种思想方法求高次方程的根.如图,r是函数
的零点,牛顿用“作切线”的方法找到了一串逐步逼近r的实数
,
,
,…,
,其中
是
在
处的切线与x轴交点的横坐标,
是
在
处的切线与x轴交点的横坐标,…,依次类推.当
足够小时,就可以把
的值作为方程
的近似解.若
,
,则方程
的近似解![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e92f14fb20f920f88dcad2ccd1d53f2.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.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/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971905ea129aec0ca7c325f60260c7e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def1075c37608d8f22a045bd825709db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b7bff9b2431134f7683a9cc4e68acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ae1bda8334139ab22c70ffe645bc3d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/692a6aba6541e5f0d80388d2d47ab977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b7bff9b2431134f7683a9cc4e68acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e92f14fb20f920f88dcad2ccd1d53f2.png)
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2024-05-24更新
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379次组卷
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3卷引用:河南省郑州市十校2023-2024学年高二下学期期中联考数学试卷
2 . 曲率是衡量曲线弯曲程度的重要指标.定义:若
是
的导函数,
是
的导函数,则曲线
在点
处的曲率
.已知
,则曲线
在点
处的曲率为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10acd6d864583617dd3e71240bf0c857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe7522a3f232bd0b7a7850ae674db43f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad7aa241de8ac2738629f7361a7c8bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94d880564c1b7e11834872432c8c3271.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
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名校
解题方法
3 . 著名科学家牛顿用“作切线”的方法求函数的零点时,给出了“牛顿数列”,它在航空航天中应用广泛.其定义是:对于函数
,若数列
满足
,则称数列
为“牛顿数列”.已知函数
,数列
为“牛顿数列”,
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0382b4a2ab0657d2d6830bb6be2b17b6.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33610d2a46105e3c8456257221d3d07b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f496911266e86ff15d128b01657838cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ac266b3586e9c76fb8631fbe04e0c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/346549f9adda7eb363f16d355ae68b85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0382b4a2ab0657d2d6830bb6be2b17b6.png)
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4 . 著名科学家牛顿用“作切线”的方法求函数的零点时,给出了“牛顿数列”,它在航空航天中应用广泛.其定义是:对于函数
,若数列
满足
,则称数列
为牛顿数列,若函数
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0382b4a2ab0657d2d6830bb6be2b17b6.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086e9b14c35ef3c57b20f5e952ebf9c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba575e10db2275e9b81fb8a892850892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086e9b14c35ef3c57b20f5e952ebf9c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318a16f1950d06e5500c76d8f81a507f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c948846c87e4fb05ae7898d277392b62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0382b4a2ab0657d2d6830bb6be2b17b6.png)
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5 . 计算器计算
,
,
,
等函数的函数值,是通过写入“泰勒展开式”程序的芯片完成的.“泰勒展开式”是:如果函数
在含有
的某个开区间
内可以多次进行求导数运算,则当
,且
时,有
.
其中
是
的导数,
是
的导数,
是
的导数…….
取
,则
的“泰勒展开式”中第三个非零项为____ ,
精确到0.01的近似值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad040ae0fab73f5dd7b1af48cd3b5f93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c7d5aee3615cdb65b3dd4e24da7bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a48345d239aaf8e9ca1ff2846c08a99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66db91bb3be9e2b6ad567774e3699758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bea26ebeb4a4b275128ba41dc9dc878.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f263b44213ddcbbedf1fcacb84e249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c8a54a4c8fc3eea3f680af9ef0940d.png)
其中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33770cd4511e0f50f2d959ffd913e97f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a7472816f7828f0ef6fad75b136a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33770cd4511e0f50f2d959ffd913e97f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ed400e9b933505b98a0612939107c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a7472816f7828f0ef6fad75b136a40.png)
取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/909736dad505d81be43aef91e6309bf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a48345d239aaf8e9ca1ff2846c08a99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab26daaf8e96e1c058f8e573f3dbd6d0.png)
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名校
6 . 艾萨克牛顿是英国皇家学会会长,著名物理学家,他在数学上也有杰出贡献.牛顿用“作切线”的方法求函数
零点时给出一个数列
,我们把该数列称为牛顿数列.如果函数
有两个零点1和2,数列
为牛顿数列.设
,已知
,
,
的前
项和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b2778e2dadff4d91102e6046bb5def8.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32cf0a1ebb799f4fe2ca5b50656f9812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9b61fcc95b52a39435c9159165a64f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d92c23c6c2530f80f700d4ca2a8ed113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a0998bd7bdcf49633c773084eea9317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b2778e2dadff4d91102e6046bb5def8.png)
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2023-03-30更新
|
538次组卷
|
4卷引用:上海市七宝中学2023届高三下学期3月月考数学试题
名校
解题方法
7 . 现代建筑讲究的线条感,曲线之美让人称奇.衡量曲线弯曲程度的重要指标是曲率,曲线的曲率定义如下:若
是
的导函数,
是
的导函数,则曲线
在点
处的曲率
,若曲线
和
在
处的曲率分别为
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ff61ecc0e66164caaf60511ea9500a4.png)
______ ;设余弦曲线
的曲率为K,则
的最大值为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10acd6d864583617dd3e71240bf0c857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe7522a3f232bd0b7a7850ae674db43f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/609bb564e7770d324aeca4eec8ed927a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15661be48657998b68a2b6afbcf108e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f16cc94df25e2cb6735f16ef98f534e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e029cc1f7d07eeb136bd3946a7eb23e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32410867843f1a7ef11410da8f3f8dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ff61ecc0e66164caaf60511ea9500a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3e27fde05cc2a11caf3422875b58372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2581192317ef233ccdccfc48ac29b52b.png)
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2023-03-16更新
|
446次组卷
|
4卷引用:湖北省襄阳市部分学校2022-2023学年高二下学期3月联考数学试题
湖北省襄阳市部分学校2022-2023学年高二下学期3月联考数学试题(已下线)第五篇 向量与几何 专题21 曲率与曲率圆 微点3 曲率与曲率圆综合训练(已下线)第十章 导数与数学文化 微点3 导数与数学文化(三)山东省青岛第十九中学2023-2024学年高二下学期期中考试数学试卷
8 . 记
为函数
的
阶导数且
,
若
存在,则称![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710b6a8cfd68c702da92ba0a71f8b77c.png)
阶可导.英国数学家泰勒发现:若
在
附近
阶可导,则可构造
(称为
次泰勒多项式)来逼近
在
附近的函数值.据此计算
在
处的3次泰勒多项式为
=_________ ;
在
处的10次泰勒多项式中
的系数为_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd370c3b127fbdb77b6e5c40318328d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f17ae7bdd3e427fb60fde7dd30ff0141.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5692cadbade0cb503fd10a6bf79ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd370c3b127fbdb77b6e5c40318328d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710b6a8cfd68c702da92ba0a71f8b77c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0876215b2fd463d151523cd3c6b447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5c572eb609d805216ef5693cf7e8b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699f767ccf837c2bf8019d03451849c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/909736dad505d81be43aef91e6309bf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4700a06406b68772c9593ad6d04cc59e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46aa18b552bea10252bfa82b604f33a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c861e3728c51f2f447c24880cb7f0f4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d800f03de80068a1172beac3a2c75587.png)
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2022-06-11更新
|
2001次组卷
|
4卷引用:广东省深圳市光明区高级中学等2022届高三下学期名校联考数学试题
广东省深圳市光明区高级中学等2022届高三下学期名校联考数学试题(已下线)专题6 “高数衔接”类型江苏省南京市宁海中学2022-2023学年高三下学期二月检测数学试题(已下线)第十章 导数与数学文化 微点2 导数与数学文化(二)
9 . 牛顿迭代法是牛顿在17世纪提出的一种近似求方程根的方法.如图,设
是
的根,选取
作为
初始近似值,过点
作曲线
的切线
,则
与
轴的交点的横坐标
,称
是
的一次近似值,过点
作曲线
的切线,则该切线与
轴的交点的横坐标
,称
是
的二次近似值.重复以上过程,得到
的近似值序列.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/68fb95fb-7a9f-490d-a5af-0fe415a47793.png?resizew=241)
(1)请选出
的
次近似值与
的
次近似值的关系式____________ (请填正确的关系式序号).①
;②
;③
.(2)若
,取
作为
的初始近似值,则
的正根的二次近似值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.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/43db00e106c7d08a76a7ba71ca5e63d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b562111ef9e4496b99fdecfb1530f4.png)
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10 . 意大利画家达·芬奇在绘制《抱银貂的女子》(下图)时曾仔细思索女子脖子上的黑色项链的形状是什么曲线?这就是著名的“悬链线问题”.后人研究发现悬链线方程与双曲余弦曲线密切关联,双曲余弦曲线
的解析式为
(
为自然对数的底数).若直线
与双曲余弦曲线
交于点
,
,曲线
在
,
两点处的切线相交于点
,且
为等边三角形,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
________ .
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