1 . 已知直线
与双曲线
相切于点
.
(1)试在集合
中选择一个数作为
的值,使得相应的
的值存在,并求出相应的
的值;
(2)过点
与
垂直的直线
分别交
轴于
两点,
是线段
的中点,求点
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c287201dc8f4b7e1a8dd41920654656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5bef93a53a2004910a8cac32f93c4b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(1)试在集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1196906fbdb1848b38b0419637041b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2024-05-20更新
|
803次组卷
|
2卷引用:浙江省温州市2024届高三第三次适应性考试数学试题
解题方法
2 . 如图,对于曲线,存在圆
满足如下条件:
①圆与曲线
有公共点
,且圆心在曲线
凹的一侧;
②圆与曲线
在点
处有相同的切线;
③曲线的导函数在点
处的导数(即曲线
的二阶导数)等于圆
在点
处的二阶导数(已知圆
在点
处的二阶导数等于
);
则称圆为曲线
在
点处的曲率圆,其半径
称为曲率半径.
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
(2)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f42b2a9736c8943106472a7398d2892.png)
(3)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eae1b87c23b45ce5e5e74d5b1d73234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c3c0b12482cc93dee05fbf69350cd99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f455ecf39764829b0bfe0a8675f1a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cbd8e10a553d5607bb8906b2cf64aaf.png)
您最近一年使用:0次
名校
解题方法
3 . 红旗淀粉厂2024年之前只生产食品淀粉,下表为年投入资金
(万元)与年收益
(万元)的8组数据:
(1)用
模拟生产食品淀粉年收益
与年投入资金
的关系,求出回归方程;
(2)为响应国家“加快调整产业结构”的号召,该企业又自主研发出一种药用淀粉,预计其收益为投入的
.2024年该企业计划投入200万元用于生产两种淀粉,求年收益的最大值.(精确到0.1万元)
附:①回归直线
中斜率和截距的最小二乘估计公式分别为:
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6ae2ff5db33b7bd19c60ab2eb6e2b6a.png)
②
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![]() | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 |
![]() | 12.8 | 16.5 | 19 | 20.9 | 21.5 | 21.9 | 23 | 25.4 |
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/462bafa57981befbea871147abffeddf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)为响应国家“加快调整产业结构”的号召,该企业又自主研发出一种药用淀粉,预计其收益为投入的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28555fa2f3a09261cb4e0305d390145.png)
附:①回归直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13557a1ebb8388eb2a9bb7ca9f0678b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5478b75ddd942ffcac4212ebe6642336.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6ae2ff5db33b7bd19c60ab2eb6e2b6a.png)
②
![]() | ![]() | ![]() | ![]() | ![]() |
161 | 29 | 20400 | 109 | 603 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d46e43b31bf74c8adc17301f50940b.png)
您最近一年使用:0次
2024-03-22更新
|
1555次组卷
|
2卷引用:浙江省温州市2024届高三第二次适应性考试数学试题
名校
解题方法
4 . 设函数,满足:①
;②对任意
,
恒成立.
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5151c5286458d5a22c37adee24c926ec.png)
您最近一年使用:0次
2023-11-09更新
|
433次组卷
|
4卷引用:浙江省温州市温州中学2023-2024学年高一上学期阶段性测试(12月月考)数学试题
5 . 若函数
,
的图象与直线
分别交于A,B两点,与直线
分别交于C,D两点
,且直线
,
的斜率互为相反数,则称
,
为“
相关函数”.
(1)
,
均为定义域上的单调递增函数,证明:不存在实数m,n,使得
,
为“
相关函数”;
(2)
,
,若存在实数
,使得
,
为“
相关函数”,且
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d71f015144ffaf1faec94a259b4a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1be7302f2e9ff02fee3fcf26e77b1c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475963eea170ff0bbdaf2f0b706dfc34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64d924836b4292239d9726c6473d7f5.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64d924836b4292239d9726c6473d7f5.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e621a08099134be54e682f5724ff4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9d03c536b2d539d4051d663a77a200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a916811b6ae474bce19ce732cf401e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64d924836b4292239d9726c6473d7f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495021c7da1c77e6ed1d1dd30e0be7bc.png)
您最近一年使用:0次
2023-02-11更新
|
2384次组卷
|
4卷引用:浙江省温州市2023届高三下学期返校统一测试数学试题
名校
解题方法
6 . 设函数
.
(1)证明:存在唯一的函数
,使得
;
(2)求所有的非负实数
使得
;
(3)
,
(i)证明:关于
的方程
与
都有唯一实根;
(ii)记
分别为方程
,
的实根,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041fc0e0ff542027634491e686a510b6.png)
(1)证明:存在唯一的函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2ee09653f053eccbba4b85fbf97c3e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aca8208f53be6a7033b4fd2a11c7964.png)
(2)求所有的非负实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8bfb563f79688d136e0cb958b5153c.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb1523685c2d0a9ef21660908378ac90.png)
(i)证明:关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713c59f274e9146b6d85375435315521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a4cb45ca6e42ced4a5c4026e2290f8.png)
(ii)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8ca3aa2d1ba52e82613d0d65d800e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713c59f274e9146b6d85375435315521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a4cb45ca6e42ced4a5c4026e2290f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c414bc882fb3c5e364582886c3325c.png)
您最近一年使用:0次
7 . 已知实数
,函数
.
(1)(i)若函数
在
上恰有一个零点,求实数
的值;
(ⅱ)当
时,证明:对任意的
,恒有
.
(2)当
时,方程
有两个不同的实数根
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdae41a842c4b331a75219ebe04ff56.png)
(1)(i)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e64ba8593537d13752713ecc882cd5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe45993e6bd636a4f34886bb3d72f42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c20eaed28d5406d2448b170b8774b85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec54969940d5aac61c538e14d990761f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe0bb3eb03296f12a276c5f7d96c8da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b698452fda78774ad4b77594713567c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264b93aa6b21f14144bf1f77be3831e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1e760b9a9f407ab080f0367920dc50.png)
您最近一年使用:0次
2022-03-24更新
|
1266次组卷
|
2卷引用:浙江省温州市2022届高三下学期3月高考适应性测试数学试题
解题方法
8 . 如图,平行四边形
的顶点
在曲线
:
上,顶点
在曲线
:
上,直线
方程为
.
![](https://img.xkw.com/dksih/QBM/2022/3/23/2942508286009344/2943028567416832/STEM/e62c427925c2457aa898e77bf0d87ed0.png?resizew=320)
(1)用
表示
;
(2)求直线
在
轴上的截距的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2407a4b6e8e9a5997f3dfa32e745236b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf1cf3c83ed73db3c4cfde89e9f0b37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6767830cc1811f0f4ea5a008fdc7e723.png)
![](https://img.xkw.com/dksih/QBM/2022/3/23/2942508286009344/2943028567416832/STEM/e62c427925c2457aa898e77bf0d87ed0.png?resizew=320)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
您最近一年使用:0次
9 . 已知函数
(e为自然对数的底数).
(1)求证:
时,
;
(2)设
的解为
(
,2,…),
.
①当
时,求
的取值范围;
②判断是否存在
,使得
成立,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2abd52a21627a3233cd377aa1a257189.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a90f71a22daa4df7bd75c1e3e66fcb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c8a82d291105594bb2f97fb81b165d0.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba2e727ac09acdaafb6c97e4f5c50aa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ea8f47d8d8d9e1832d52b1c7425450.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45176df950dfe48b8ca7eac08ee349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/803092f422dcd99c23e821770b923188.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2daf2bf93c9c6fceee6b8068ee19d111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9727721cbac7d8d47c511fe934f9215d.png)
②判断是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2498a2158280a2502d58ccfc84e5bc69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2bed16e997a85f5d6d1a4d2d89a83f.png)
您最近一年使用:0次
10 . 如图,曲线
与抛物线
关于
轴对称.
是
上一动点,过点
作
的切线与
自下而上依次交于两点
,过点
作
的切线与
切于点
(
在
轴同侧),直线
与
轴交于点
.
![](https://img.xkw.com/dksih/QBM/2021/11/11/2849154368757760/2851120287129600/STEM/5d37c1b6-987c-4b3f-9952-98d1c18c481c.png?resizew=214)
(1)若直线
经过
的焦点,求
;
(2)记
和
的面积分别为
和
,判断
是否为定值.若是,求出此定值,若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6990c7d045c0d4a1046819189f4374b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
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(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c37bf5fbb839e7112a91b2054c244.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbfcae2cecc98e2d6c16dde6d3ec1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
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