名校
1 . 若函数
有
个零点,且从小到大排列依次为
,定义
如下:
.已知函数
(其中
为实数).
(1)设
是
的导函数,试比较
和
的大小;
(2)若
,求
的取值范围;
(3)对任意正实数
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe1c31a81f198c443e71b83ca662939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28ae738aa8389e3b7902ea5055a4f279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8e73582d71d8dafbe53f55bbde3c99f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926a1586c9457dd1996157096eb23f57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/301bbd5742966ec13edf24d7a3b150e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde66f0ef8ea3ac6d6ac91a93ba69ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ac79984ad2022bf411890562910d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034f4c179b838bf595faede7eafb86e4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a33d620bf581ebbe4c9fea0ee549fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)对任意正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/793927fab6e6256ea2eeb70334a9db31.png)
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解题方法
2 . 三角形的布洛卡点是法国数学家、数学教育学家克洛尔于1816年首次发现,但他的发现并未被当时的人们所注意.1875年,布洛卡点被一个数学爱好者布洛卡重新发现,并用他的名字命名.当
内一点
满足条件
时,则称点
为
的布洛卡点,角
为布洛卡角.如图,在
中,角
所对边长分别为
,点
为
的布洛卡点,其布洛卡角为
.
.求证:
①
(
为
的面积);
②
为等边三角形.
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec15e5cb6d4dc2cf6ba0bedd87514448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7b9d9bf0d5fc25c99170ab27fa4045.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa010342528037783c29e6fc705d5bba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5cbff84327e964f912a54032e76ccc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6492fa033f83d0775b049476612b86ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e02df6f963e47a894cce8b4ad469ec.png)
您最近一年使用:0次
2024-04-24更新
|
637次组卷
|
3卷引用:江苏省常州市教育学会2023-2024学年高一下学期4月学业水平监测数学试题
名校
解题方法
3 . 悬链线的原理运用于悬索桥、架空电缆、双曲拱桥、拱坝等工程.通过适当建立坐标系,悬链线可为双曲余弦函数
的图象,类比三角函数的三种性质:①平方关系:①
,②和角公式:
,③导数:
定义双曲正弦函数
.
(1)直接写出
,
具有的类似①、②、③的三种性质(不需要证明);
(2)若当
时,
恒成立,求实数a的取值范围;
(3)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31bb273b5a350968453b96f948fcded4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af7ca3fcd9a43d520ed650b80ef2dad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/089d529ef22e4f75f91a4657dedcaf37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4d4c6c322c65c32e15cf2ad012560a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2cb91e9953f005f9d72f892466b8fd2.png)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b8f5a1a76374ad5712b4ecafb64b96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0379c458448d37a46ae0d25e65ab6258.png)
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9957a339be7094158adb4b156a31d40.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e1e3e51b8ae3bebb72439b409ee6b96.png)
您最近一年使用:0次
2024-01-27更新
|
2030次组卷
|
7卷引用:江苏省常州高级中学2023-2024学年高二下学期第一次调研考试数学试题
江苏省常州高级中学2023-2024学年高二下学期第一次调研考试数学试题云南省昆明市第一中学2024届高三上学期第六次考前基础强化数学试题2024届高三新改革适应性模拟测试数学试卷一(九省联考题型)浙江省湖州市第一中学2024届高三下学期新高考数学模拟试题(已下线)压轴题函数与导数新定义题(九省联考第19题模式)练(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2024届山西省平遥县第二中学校高三冲刺调研押题卷数学(二)
4 . 已知
、
是椭圆
的左、右焦点,
,椭圆上(异于顶点)的点
满足
,则下列选项正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec92768b052f6ceb3efc112b7e48625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef494fc2655eb2eaed250768b4ba69d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e3f790b1a72e0f3c02deda42e7ab21.png)
A.直线![]() |
B.三角形![]() ![]() |
C.三角形![]() ![]() |
D.点![]() ![]() ![]() |
您最近一年使用:0次
2021-11-11更新
|
1737次组卷
|
4卷引用:江苏省常州市第一中学2022-2023学年高三上学期12月调研考试数学试题
江苏省常州市第一中学2022-2023学年高三上学期12月调研考试数学试题浙江省杭州市学军中学2021-2022学年高二上学期期中数学试题(已下线)专题10.1—圆锥曲线—椭圆1—2022届高三数学一轮复习精讲精练(已下线)第3章 圆锥曲线的方程(基础、典型、易错、新文化、压轴)(3)
5 . 木工是家居装修中重要的角色,经过他们灵巧的双手,一件件堪称艺术品的木制家具被巧妙的制作出来,如图所示就是一种木工制图工具,
是直滑槽
的中点,短杆
可绕
转动,长杆
通过
处铰链与
连接,
上的栓子
可沿滑槽
滑动,且
,
.当栓子
在滑槽
内往复运动一次时,带动
绕
转动一周(
不动时
也不动),
处的笔尖画出的曲线记为
.
![](https://img.xkw.com/dksih/QBM/2021/7/20/2768334835032064/2792428161998848/STEM/ad47ec60-8cbe-4245-89cd-c9007ef9f75a.png?resizew=520)
(1)判断曲线
的形状,并说明理由;
(2)动点
在曲线
外,且点
到曲线
的两条切线相互垂直,求证:点
在定圆上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54298f581688081d0b0214334a0dedf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ef478c804c71ad3b374196a8ca9d74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/2021/7/20/2768334835032064/2792428161998848/STEM/ad47ec60-8cbe-4245-89cd-c9007ef9f75a.png?resizew=520)
(1)判断曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2021-08-23更新
|
710次组卷
|
2卷引用:江苏省常州市前黄高级中学2021届高三下学期学情检测(三)数学试题
名校
6 . 已知圆台的上下底面的圆周都在半径为2的球面上,圆台的下底面过球心,上底面半径为
,设圆台的体积为
,则下列选项中说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0ed44a43ec0addca39f4ff790b882b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
A.当![]() ![]() | B.当![]() ![]() ![]() |
C.![]() | D.当![]() ![]() ![]() |
您最近一年使用:0次
2021-08-03更新
|
1194次组卷
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5卷引用:江苏省常州市田家炳高级中学2023届高三一模热身练习数学试题
江苏省常州市田家炳高级中学2023届高三一模热身练习数学试题重庆市巴蜀中学2022届高三上学期适应性月考(一)数学试题(已下线)专题8.8 立体几何综合问题(讲)- 2022年高考数学一轮复习讲练测(新教材新高考)(已下线)考点35 立体几何中的综合问题-备战2022年高考数学典型试题解读与变式(已下线)湖南省株洲市2023届高三下学期一模数学试题变式题11-16