名校
1 . 已知函数
,
.
(1)若直线
是曲线
在
处的切线,求
的表达式;
(2)若任意
且
,有
恒成立,求符合要求的数对
组成的集合;
(3)当
时,方程
在区间
上恰有1个解,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b923078510697d5f7f9ea392eb76dd9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4935611969e644511329f6b0dbbf3b.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/779857e2a9f13158fb4cf5988debceca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5223ece2f8f76850c49e2505304532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eaa16e4de765a7127b2a4aa8302cef9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a5286cdf08218995b1514c195494e3.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/298b861acdad2f218a882319c1a3280a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a531b9769bfba66a10139b153f09307c.png)
您最近一年使用:0次
2 . 已知函数
与
的图象关于直线
对称,若
,构造函数
.
(1)当
时,求函数
在点
处的切线与坐标轴围成三角形的面积;
(2)若
(其中
为
的导函数),当
时,
,证明:
.(参考数据:
)
![](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/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca5c70f5cb1caf91827aa7d3041f37a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a3f617721f69da3649d17ec9c59602.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c97d54952104950bfd7afc0176bbd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339416541b598f3c1fd390ef1b3251b3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752bf766bc202c8cb83e4c6a9abe989f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51350a90203fcdc2d500a89061b7f52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424ef928fdc9de964b00ad253701959e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fed1a157dd189c3a1f20868a121cad6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac07d4b1e7127c7eb1fb914837256d70.png)
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3 . 函数
的表达式为
.
(1)若
,直线
与曲线
相切于点
,求直线
的方程;
(2)函数
的最小正周期是
,令
,将函数
的零点由小到大依次记为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c032d50e3dde09f453adc34a1c5353ea.png)
,证明:数列
是严格减数列;
(3)已知定义在
上的奇函数
满足
,对任意
,当
时,都有
且
.记
,
.当
时,是否存在
,使得
成立?若存在,求出符合题意的
;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c0923a929dbc45520103daa8a889b60.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dcee772e6187ac31d7f8d69b0487000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bea3733e989ba820120027e2c3664285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e2d7c958e99bcd9d7f251c19ee3544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fba2967e52115b6f3f668116ed021199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f786a5701dc1a8a015e8843c3360151b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c032d50e3dde09f453adc34a1c5353ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30af9e4dbb01b5db338a2cd88cb1cc01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84bef0ef12869d633d4592adec26ea6a.png)
(3)已知定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b8ca7bca7dd23fa9e18073ad4636dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344008f3ab39f3923a971a44c2c4bbf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd5f68f8223717c5f9e7a35da919f60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ca34074d548c4b6c3cd3a1006895fab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbda8d24ba7efec06837fc39824d7e1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e15c2171c1be9ec394494ad822a048d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf88dc817c8fdbd8730f52ff5ed4cd43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a8f180b0f0fcbf29811f39603ecaba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5223ece2f8f76850c49e2505304532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e34fd6b3b3243aa66337886d067021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
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4 . 病毒感染是指病毒通过多种途径侵入机体,并在易感的宿主细胞中增殖的过程.如果一个宿主感染了病毒并且在刚出现不良反应时就对症下药,在用药
小时后病毒的数量为
(细菌个数的单位:百个)
(1)求曲线
点在
处的切线方程;
(2)求细菌数量超过14(百个)的时间段.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88da1d262558a528bff8035e7f43bbe.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)求细菌数量超过14(百个)的时间段.
您最近一年使用:0次
2023-07-14更新
|
142次组卷
|
2卷引用:【人教A版(2019)】专题05导数及其应用(第一部分)-高二下学期名校期末好题汇编
名校
5 . 已知函数
.
(1)当
时,求出函数在点
处的切线方程.
(2)如图所示,函数
图像上一点
处的切线与函数图像交于点
,过
的切线
(
为切点)与
处的切线交于点
.问:三角形
是否可能是等边三角形?若是,求此时
的值;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/144374b31db4198d359833cd7aa68f67.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d06e33d079ac1649ee5eea8f61de7cf.png)
(2)如图所示,函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
6 . 如图,曲线BRA是一段二次函数的图象,B在y轴上,A在x轴上,R为抛物线段上一动点,以R为切点的抛物线的切线与x轴交于P点,与y轴交于Q点,已知抛物线段上存在一点D到x,y轴的距离分别为
,
,且OA=1,OB=2.过B作
轴,与PQ交于C.
![](https://img.xkw.com/dksih/QBM/2022/7/13/3021844094156800/3022691948642304/STEM/476d734678fd4d3095aeec8ded54c386.png?resizew=151)
(1)求抛物线段BRA的方程;
(2)求图中阴影部分的面积取得最小值时,R点到y轴的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2146aec59309d1544ece1d028a17e394.png)
![](https://img.xkw.com/dksih/QBM/2022/7/13/3021844094156800/3022691948642304/STEM/476d734678fd4d3095aeec8ded54c386.png?resizew=151)
(1)求抛物线段BRA的方程;
(2)求图中阴影部分的面积取得最小值时,R点到y轴的距离.
您最近一年使用:0次
2022-07-15更新
|
256次组卷
|
3卷引用:广东省广州市真光中学2023-2024学年高二下学期第一次月考适应性预测卷数学试题
真题
解题方法
7 . 函数y=f(x)在区间(0,+∞)内可导,导函数
是减函数,且
.设x0∈(0,+∞),
是曲线y=f(x)在点(x0,f(x0))的切线方程,并设函数
.
(1)用
表示m;
(2)证明:当x0∈(0,+∞)时,
;
(3)若关于x的不等式
在[0,+∞)上恒成立,其中a,b为实数,求b的取值范围及a与b所满足的关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e808873b814cf720131eeed83e88bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0195b09df4650c8e818131f4608000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46240f61b85f15c0ef80b30b599c9772.png)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ba09c544777391218919e9146d45ad2.png)
(2)证明:当x0∈(0,+∞)时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e653994b245fbdc2ac3458429c65e69e.png)
(3)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c070bd52b36f70fe52b7d5187de1163.png)
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2021-12-09更新
|
424次组卷
|
3卷引用:考点20 导数的应用--不等式问题 2024届高考数学考点总动员【练】
(已下线)考点20 导数的应用--不等式问题 2024届高考数学考点总动员【练】天津市南开区南大奥宇培训学校2020-2021学年高三上学期第一次月考数学试题2005年普通高等学校招生考试数学试题(辽宁卷)
8 . 设直线
,曲线
.若直线
与曲线
同时满足下列两个条件:①直线
与曲线
相切且至少有两个切点;②对任意
都有
.则称直线
为曲线
的“上夹线”.
(1)已知函数
.求证:
为曲线
的“上夹线”;
(2)观察下图:
的“上夹线”的方程,并给出证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70087bf78bee970f6ecf583ca1fccc42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0016d106579d6b26cf2960cf744f317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d9dc155203792c9983b2118b7730088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(1)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c043c3bf7b638f8bb635ee098130560.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)观察下图:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d08fe48eafb7a58cb673cc4bce2aa0e7.png)
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21-22高二·江苏·课后作业
9 . (1)如图(1),直线l是抛物线
在
处的切线,求直线l在y轴上的截距;
(2)如图(2),直线l是曲线
在
处的切线,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1463ebc3b477e08b2851e01e741c2a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39cc033406da2cdd342308972c6701f1.png)
(2)如图(2),直线l是曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5930aad1d8222258fe2d754e30da2116.png)
![](https://img.xkw.com/dksih/QBM/2022/2/23/2922747047501824/2926860197953536/STEM/43be767a-93ea-402a-82ba-0ea32b266da8.png?resizew=415)
您最近一年使用:0次