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1 . 已知函数
,不等式
对
恒成立.
(1)求函数
的极值和函数
的图象在点
处的切线方程;
(2)求实数
的取值的集合
;
(3)设
,函数
,
,其中
为自然对数的底数,若关于
的不等式
至少有一个解
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9627dad36db7d25edad5e4391db232e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdab6cdeadd4f883f1fbd15653d8a649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a4df880ff8c0322708ca3048aa665c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a4df880ff8c0322708ca3048aa665c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bd9af9d8560a40baa4f081ddcf45452.png)
(2)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4bb5aa475fe2019eb6fa89637738ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a2191c6a5f97bf2a1bbd536a5c9581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1aa6018802b084afcd52baac82aa5a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58345bdc3db5c7f1e6b764985bafd6af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/845dc9e844467074bb2cf8bb95566206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2018-12-21更新
|
787次组卷
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2卷引用:【校级联考】湖北省黄冈中学等八校2019届高三第一次(12月)联考数学理试题
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解题方法
2 . 已知函数
的导函数为
,且对任意的实数
都有
(
是自然对数的底数),且
,若关于
的不等式
的解集中恰有两个整数,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ba07e1c2f8d024e0a61c8edab08fd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e61c9a7ed0961f8977a21dab37aab396.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4823e3917929f102d99a8db8e2d569f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-04-27更新
|
1092次组卷
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6卷引用:湖北省襄阳市2018-2019学年高二下学期期末数学(理)试题
湖北省襄阳市2018-2019学年高二下学期期末数学(理)试题山东省济宁市嘉祥县第一中学2020届高三下学期第四模拟考试(考前训练二)数学试题(已下线)2021届高三数学新高考“8+4+4”小题狂练(19)湖北省襄阳市2018-2019学年高二下学期期末数学(文)试题(已下线)专题13 用导数研究函数(难点)-2020-2021学年高二数学下学期期末专项复习(北师大版2019选择性必修第一册、第二册)(已下线)专题2-3 导数压轴小题归类(讲+练)-2
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3 . 解关于
的不等式
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46b5038e7aae0eac90dbee8140b0793.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
您最近一年使用:0次
名校
解题方法
4 . 已知函数
,(a,b∈R)
(1)当a=﹣1,b=0时,求曲线y=f(x)﹣g(x)在x=1处的切线方程;
(2)当b=0时,若对任意的x∈[1,2],f(x)+g(x)≥0恒成立,求实数a的取值范围;
(3)当a=0,b>0时,若方程f(x)=g(x)有两个不同的实数解x1,x2(x1<x2),求证:x1+x2>2.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18ae80e459b602132cc8b76a09ec3156.png)
(1)当a=﹣1,b=0时,求曲线y=f(x)﹣g(x)在x=1处的切线方程;
(2)当b=0时,若对任意的x∈[1,2],f(x)+g(x)≥0恒成立,求实数a的取值范围;
(3)当a=0,b>0时,若方程f(x)=g(x)有两个不同的实数解x1,x2(x1<x2),求证:x1+x2>2.
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2020-10-15更新
|
7451次组卷
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7卷引用:天津市和平区第一中学2019-2020学年高三上学期10月月考数学试题
天津市和平区第一中学2019-2020学年高三上学期10月月考数学试题天津市南开大学附中2020-2021学年高三上学期第二次月考数学试题(已下线)极值点偏移专题03 不含参数的极值点偏移问题(已下线)极值点偏移专题02 极值点偏移问题判定定理天津市滨海新区2021届高三下学期三模数学试题天津市滨海新区实验中学滨海学校2024届高三上学期期中质量调查数学试题江西省宜春市上高县2024届高三上学期12月月考数学试题
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5 . 几位大学生响应国家的创业号召,开发了一款应用软件.为激发大家学习数学的兴趣,他们推出了“解数学题获取软件激活码”的活动.这款软件的激活码为下面数学问题的答案:已知数列1,1,2,1,2,4,1,2,4,8,1,2,4,8,16,
,其中第一项是
,接下来的两项是
,
,再接下来的三项是
,
,
,依此类推.求满足如下条件的最小整数
:
且该数列的前
项和为2的整数幂.那么该款软件的激活码是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07096af3b99fd1cb11c31f19a2c6408e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c187044e689bbe78aededb6b48f877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c187044e689bbe78aededb6b48f877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78697a69758b8d469a74236859514a72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c187044e689bbe78aededb6b48f877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78697a69758b8d469a74236859514a72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ad4668cc927e277289b2af718f0d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752b88753df05fbd624c379d197747bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
A.95 | B.105 | C.115 | D.125 |
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2020-12-24更新
|
1140次组卷
|
3卷引用:江苏省苏州市张家港市梁丰高级中学2020-2021学年高二上学期期中数学试题
江苏省苏州市张家港市梁丰高级中学2020-2021学年高二上学期期中数学试题(已下线)高二数学下学期期中精选50题(压轴版)2021-2022学年高二数学下学期考试满分全攻略(人教A版2019选修第二册+第三册)辽宁省锦州市辽西育明高级中学2022-2023学年高二下学期第一次阶段性数学试题
名校
6 . 已知函数
.
(1)求函数
的单调性与极值;
(2)若关于
的方程
有两个解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492ed70446f992ae9f02768fed444bbb.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d8757e551b2104d3dfbbd4c8bfe961.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2016-12-04更新
|
598次组卷
|
2卷引用:2016届吉林四平一中高三五模文科数学试卷
2014·江苏南通·一模
7 . 已知函数
.
(1当
时,
与
)在定义域上单调性相反,求的
的最小值.
(2)当
时,求证:存在
,使
的三个不同的实数解
,且对任意
且
都有
.
![](https://img.xkw.com/dksih/QBM/2014/6/24/1571794857263104/1571794863235072/STEM/2dd8cf64b6904c409b0626364d3f5cde.png)
(1当
![](https://img.xkw.com/dksih/QBM/2014/6/24/1571794857263104/1571794863235072/STEM/798aad047a9344a984e27afd86bc47cb.png)
![](https://img.xkw.com/dksih/QBM/2014/6/24/1571794857263104/1571794863235072/STEM/274a5cba98ec4744a1167a37dfe6cf19.png)
![](https://img.xkw.com/dksih/QBM/2014/6/24/1571794857263104/1571794863235072/STEM/f830c331aea94ee6b130643441db9056.png)
![](https://img.xkw.com/dksih/QBM/2014/6/24/1571794857263104/1571794863235072/STEM/1500db7870d44a09ba84226c6491e1b1.png)
(2)当
![](https://img.xkw.com/dksih/QBM/2014/6/24/1571794857263104/1571794863235072/STEM/5cc8f5c33e9a4fb090452b3e9db65d61.png)
![](https://img.xkw.com/dksih/QBM/2014/6/24/1571794857263104/1571794863235072/STEM/352b57f5d3b1488e9ab698a6669e0ab7.png)
![](https://img.xkw.com/dksih/QBM/2014/6/24/1571794857263104/1571794863235072/STEM/03442e2e9a0f4202850a377cbda8c59e.png)
![](https://img.xkw.com/dksih/QBM/2014/6/24/1571794857263104/1571794863235072/STEM/019762b744684e778fca9db01dc243f2.png)
![](https://img.xkw.com/dksih/QBM/2014/6/24/1571794857263104/1571794863235072/STEM/2ad5a2a811094871810de9ed8896327f.png)
![](https://img.xkw.com/dksih/QBM/2014/6/24/1571794857263104/1571794863235072/STEM/05976cf0e61243368d3d06559327d38a.png)
![](https://img.xkw.com/dksih/QBM/2014/6/24/1571794857263104/1571794863235072/STEM/c250f4b2847643f6a9b3a121469b4bad.png)
您最近一年使用:0次
14-15高三上·陕西·阶段练习
8 . 已知函数
,其中
为实数,
(1)若
,求函数
的最小值;
(2)若方程
在
上有实数解,求
的取值范围;
(3)设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e9f300af2c7392af58d50f3f1a9867.png)
…,
均为正数,且
,
求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8a1158dc0bd7fe9811e7f7d8865bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187d8df1f4c4673d12c1d0608534de23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e9f300af2c7392af58d50f3f1a9867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa552498905d75b446a60dce3180baaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713ac1eb0d8cce55d51e62ef4a2b1634.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df94b5125420fcc870aa6b0643ead57d.png)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3df1aebd310818f3e78b56c4ea26ef5.png)
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