名校
解题方法
1 . 已知函数
,且
在
处切线垂直于y轴.
(1)求m的值;
(2)求函数
在
上的最小值;
(3)若
恒成立,求满足条件的整数a的最大值.
(参考数据
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aa58c3a5136129b84a94db538bfaf05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(1)求m的值;
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408531697ece8198a1190fe396ba91c2.png)
(参考数据
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a0257f1caaf4c3bb345dddf248d44b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65cc39d12bb5794931b8bdcda3265ca.png)
您最近一年使用:0次
2020-08-05更新
|
379次组卷
|
6卷引用:2020届浙江省金华市金华十校高三11月模拟考试数学试题
2020届浙江省金华市金华十校高三11月模拟考试数学试题山东省菏泽一中2019-2020学年高三3月线上模拟考试试题浙江省金华市义乌市2019-2020学年高三上学期一模试题(已下线)强化卷08(4月)-冲刺2020高考数学之拿高分题目强化卷(山东专版)广东省汕头市潮阳实验学校2024届高三上学期摸底数学试题吉林省延边第二中学2020-2021学年高二下学期期中考试数学(理)试题
名校
解题方法
2 . 已知函数
.
(1)证明:函数
仅有一个极值点;
(2)若不等式
恒成立,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/079a2efb85b43f76fb82668aef36e58c.png)
(1)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a2f37acd5b240fade8f5254d785a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
3 . 已知
.
(1)若
不存在极值点且
,求
的最小值;
(2)当
时,设函数
,记
在
上最大值和最小值分别为
,
,若
是常数,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3380d1a8d4067468c0714020a0329dc0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4fd4a077459e7c0da898fe667c9be7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2135a8961f7f4fc8183d58e81e736a47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f511880834175ac4546ea7cc7758b1b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
4 . 函数
,
.
(1)对任意
,
恒成立,求
的取值范围;
(2)若
,对任意
,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34819ce6add5ab2ca5d7202524677543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168163183a3d4663be45755f44676191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14983bc2592cc5572d050e364668b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c09213e68cfa1c481cf4356cc44be34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43624b085cb173c2b1889d4aaf8177eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
5 . 定义可导函数
在x处的弹性函数为
,其中
为
的导函数.在区间D上,若函数
的弹性函数值大于1,则称
在区间D上具有弹性,相应的区间D也称作
的弹性区间.
(1)若
,求
的弹性函数及弹性函数的零点;
(2)对于函数
(其中e为自然对数的底数)
(ⅰ)当
时,求
的弹性区间D;
(ⅱ)若
在(i)中的区间D上恒成立,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6ddb08a9de225c085f5f5b86d29df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a463cf6b7fa0eada7e9a01dba21003e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a723aebd8e4221c887b883733101e19.png)
(2)对于函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4bc0d1059a7e67ce15beb9df4f3e9e2.png)
(ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aeb9a94e392f6759b18abed89aacc5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
您最近一年使用:0次
2020-07-31更新
|
1972次组卷
|
7卷引用:江苏省淮安市淮阴中学2020届高三下学期5月高考模拟数学试题
名校
解题方法
6 . 新型冠状病毒是一种人传人,而且隐藏至深、不易被人们直觉发现危及人们生命的严重病毒.我们把与这种身带新型冠状病毒(称之为患者)有过密切接触的人群称为密切关联者.已知每位密切关联者通过核酸检测被确诊为阳性后的概率为
.一旦被确诊为阳性后即将其隔离.某位患者在隔离之前,每天有
位密切关联者与之接触(而这
个人不与其他患者接触),其中被感染的人数为
.
(1)求一天内被感染人数
的概率
的表达式和
的数学期望;
(2)该病毒在进入人体后有14天的潜伏期,在这14天内患者无任何症状,则为病毒传播的最佳时间.设每位患者在不知自己患病的情况下的第二天又与
位密切关联者接触.从某一名患者被带新型冠状病毒的第1天开始算起,第
天新增患者的数学期望记为
.
①当
,
,求
的值;
②试分析每位密切关联者佩戴口罩后与患者接触能否降低患病的概率,经大量临床数据验证佩戴口罩后被感染患病的概率
满足关系式
.当
取得最大值时,计算
所对应的
和
所对应的
值,然后根据计算结果说明佩戴口罩的必要性(取
).
(参考数据:
,
,
,
,
,
计算结果保留整数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c8578f06897aa6fb84aa95c797d3d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8eadad8a8e5499833402309d9cba4fe.png)
(1)求一天内被感染人数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a7713e92137d607d9a85d3333d8ddf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
(2)该病毒在进入人体后有14天的潜伏期,在这14天内患者无任何症状,则为病毒传播的最佳时间.设每位患者在不知自己患病的情况下的第二天又与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46b9f1a66ffe7d303510678a069a52b3.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6226b263d7eaae99b449dd56410e841f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f970f380a12c843bb4a74ff34a15b2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c2fb1c429eedede140ce3582effef1.png)
②试分析每位密切关联者佩戴口罩后与患者接触能否降低患病的概率,经大量临床数据验证佩戴口罩后被感染患病的概率
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a886d45a46bdde67115c5911cb85ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f82e57c5fa346d58e7c4fdbfea39f41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a886d45a46bdde67115c5911cb85ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a886d45a46bdde67115c5911cb85ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07a4303241972c4400ece8d34f0dde18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60cb085178d2c970a15469d66b5d683d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6226b263d7eaae99b449dd56410e841f.png)
(参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f12a76edbb3e98e3ff41c03401769d1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50101047632b94dcd5cf8035b093cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04e36492ded42e594c63855802dee601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b3de587321151ba08b37be46802f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b268904aaa426d3741aab972a87082f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2228b549150de6c9b303bc010b8d3118.png)
您最近一年使用:0次
2020-07-29更新
|
4274次组卷
|
7卷引用:2020年全国普通高等学校统一招生考试试验检测卷1数学(理科)试题
2020年全国普通高等学校统一招生考试试验检测卷1数学(理科)试题江苏省如东中学、姜堰中学、沭阳中学三校2022届高三下学期4月阶段性测试数学试题(已下线)专题17 概率与统计的创新题型(已下线)专题11-2 概率与分布列大题归类-1(已下线)模块十 计数原理与统计概率-2(已下线)专题9-1 概率与统计及分布列归类(理)(讲+练)-2宁夏回族自治区银川一中2023-2024学年高二下学期期中考试数学试题
名校
7 . 已知函数
,其中
.
(1)求
的单调区间;
(2)当
时,斜率为
的直线
与函数
的图象交于两点
,
,其中
,证明:
;
(3)是否存在
,使得
对任意
恒成立?若存在,请求出
的最大值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfcea74d330997ee9c92a223c0335851.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dabcf7a3680e9a046f0fd32c077ddfe.png)
(3)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99074f989e74d5ff306b4b7b7a379c1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17393f79a53100a65be2579a8f0162b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2020-07-27更新
|
1300次组卷
|
7卷引用:2016届四川省成都市七中高三11月阶段测试文科数学试卷
8 . 设
,函数
.
.
(1)讨论
和
单调性;
(2)若
存在两个不同的零点
,
,
,问当
取何值时,
有最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3a806d4fce048653a03d49dfed29c08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541ab5f6eaba73c4ed7faff20b1c7da3.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/84b5f32c09caa0be0d4c33be07aa4530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8dc531505ec45b8eb8ae4fad88d69e8.png)
您最近一年使用:0次
9 . 已知函数
.
(1)若函数
在
单调递减,求实数
的取值范围;
(2)若
,
是函数
的两个极值点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26802009fd436f44db553d6b1f60c2f6.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](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/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c67a34394380636fdf4b882ce28d40.png)
您最近一年使用:0次
2020-07-25更新
|
818次组卷
|
3卷引用:2020年普通高等学校招生全国统一考试伯乐马模拟考试(二)理科数学试题
2020年普通高等学校招生全国统一考试伯乐马模拟考试(二)理科数学试题(已下线)【南昌新东方】江西师大附中2020-2021学年高三上学期10月第一次月考数学(理)试题湖北省武汉市华中科技大学附属中学2022-2023学年高二下学期3月月考数学试题
解题方法
10 . 设函数
和
,若
在
处的切线方程为
.
(1)证明:
,
,
;
(2)若存在
,对任意的
恒有
,求实数
的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d15a444ff4d9adab0dd46a1cf91f4fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c4473159277aed64ea96c4af087954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eac3ccbf9bcc3cc966be9c73ff84149.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40d48e2a3be7380b17dd16eb7b653ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7898341abbbf8da0a085fa59d0887576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6154e00013d9dee84c0e941f676ea9.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b874e45974ce6a77f78f561406d779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33faa2c47a3c6c3023f0b5fb26b79f03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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