名校
1 . 设函数
,
,
为自然对数的底数.
(Ⅰ)若函数
存在两个零点,求
的取值范围;
(Ⅱ)若对任意
,
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b05ea2c07b8be7b5dbc5a19710c14e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(Ⅰ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1053b3c7c6a31d33b4037a8b20d7c776.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2017-06-05更新
|
805次组卷
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2卷引用:安徽省太和中学2016-2017学年高二下学期第三次月考数学(理)试题
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6910b3f37a0c9f3234a7f1b5e292366.png)
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd7ad6f1860dd8ba85d6e315de4deaf.png)
(1)若
讨论
的单调性;
(2)若过点
可作函数
图象的两条不同切线,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6910b3f37a0c9f3234a7f1b5e292366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e5ff2705eb737adef9a6dc70559d79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd7ad6f1860dd8ba85d6e315de4deaf.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8dc2c9d268145930a3de56f13ccb08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a9301fc1ac223f9ddee3e918b4d882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb69afd7bc1a8109009e9fe9498dc69d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2017-05-23更新
|
877次组卷
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2卷引用:安徽省合肥庐阳高级中学2017-2018学年高二(上)期末考试理科数学试题
名校
3 . 已知函数
.
(1)若在
处,
和
图象的切线平行,求
的值;
(2)设函数
,讨论函数
零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67c38269afe80aa09ee7a26e8656826a.png)
(1)若在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56dd5f5b89bdf799ca6984cea1d6aa71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74314814cdc6fb803abb4692458af131.png)
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2017-05-09更新
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1405次组卷
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3卷引用:安徽省马鞍山市第二中学2018-2019学年高二下学期期末数学(理)试题
名校
4 . 设函数
.
(Ⅰ)若
,求
的极值;
(Ⅱ)若
在定义域上单调递增,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83520386c4b43a8b02d688bc95cb96e4.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e9222ffc26c0e6bfbf252ab5d8a520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2017-05-03更新
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885次组卷
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2卷引用:安徽省太和中学2016-2017学年高二下学期期中考试数学(理)试题
名校
解题方法
5 . 已知函数
,
.
(1)求过点
且与曲线
相切的直线方程;
(2)设
,其中
为非零实数,
有两个极值点
,且
,求
的取值范围;
(3)在(2)的条件下,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77227e2627be28f36ee74ee3e8b563c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c20ab8782f3ad46b8608d30df21aace8.png)
(1)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d836280b3e758c30cbd7e8a5b7fbf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f786a5701dc1a8a015e8843c3360151b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)在(2)的条件下,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9387c3b3079c432e3845c60466fe0921.png)
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名校
6 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/873dfc7bdcc028c4d2bc55e9ef8dcfc6.png)
(1)求函数
的单调增区间;
(2)当
时,记
,是否存在整数
,使得关于
的不等式
有解?若存在,请求出
的最小值;若不存在,请说明理由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/873dfc7bdcc028c4d2bc55e9ef8dcfc6.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e01a643a6df588f55c1dcfa5dfe7132.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab02445a82a190e6d680300444d4dbac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28353d603ebaa9f929031a3254406dd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2017-04-20更新
|
291次组卷
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6卷引用:安徽省固镇县第一中学2018-2019学年高二5月月考数学(理)试题2
名校
7 . 已知函数
,
.
(1)证明:
,直线
都不是曲线
的切线;
(2)若
,使
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728f2cc68f8ca8ef2faa681785798259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/770538d7235d12c0117bd2824ef8cf07.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914b349342d0f91c17878d709c16ba2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06fdccde9d9d4dcad15e8889b285eda0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11f827ed65d721a3341985c9f6879d92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2017-04-20更新
|
893次组卷
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8卷引用:安徽省亳州市第一中学2022-2023学年高二下学期第一次月考数学试题
名校
8 . 已知函数
,
.
(1)当
时,求
的单调区间;
(2)当
时,若对任意
,都有
成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/765129f97e6dc87e4c1c8455160b6b07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6850bb223adfcd537595b6c7de01d7b7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8e1dd8da540badcb9a8f427c5b202e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3485a6e16799fbeeda320f7f3e8db329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2017-04-14更新
|
1133次组卷
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3卷引用:【全国百强校】安徽省蚌埠市第二中学2018-2019学年高二下学期期中考试数学(文)试题
名校
9 . 设函数
.
(Ⅰ)若
,求曲线
在
处的切线方程;
(Ⅱ)若当
时,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438651a0465d66ae6014f49539cbf04a.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f768826a9d3357230873dabc1bb34167.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
(Ⅱ)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27f27cbb8185c1974d715ff95f8801c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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2017-04-11更新
|
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4卷引用:2016-2017学年安徽省池州市第一中学高二下学期期中考试数学(理)试卷
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10 . 设函数
在
上可导,其导函数为
,且函数
在
处取得极小值,则函数
的图象可能是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a089c207e39a24d0d82aa853ac2bbb8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac38eb227b897fc65a7ed119dbe637d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-04-09更新
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6卷引用:2016-2017学年安徽省六安市第一中学高二下学期第一次阶段检测数学(文)试卷