1 . 已知
(
).
(1)讨论
的单调性;
(2)若
,函数
,
,
,
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751fb06710d7a55afd00137dd499b623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35dda694c4d82027181dd66286a3d5f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673207f6b77b8192d25463d071737b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1a5699410baa270f3fa8153ab346e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a3fa85005250aff12e90fbfe68660b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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4卷引用:安徽师范大学附属中学2023届高三上学期1月月考数学试题
名校
2 . 若
是函数
的两个极值点,且
,则实数
的取值范围为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4793ed72ec17a553376fea2c094077f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552cd99ee7b07d61814e9b2f8a40c36f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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8卷引用:安徽师范大学附属中学2023届高三上学期1月月考数学试题
解题方法
3 . 已知函数
,其中
是自然对数的底数.
(1)设曲线
与
轴正半轴相交于点
,曲线在点
处的切线为
,求证:曲线
上的点都不在直线
的上方;
(2)若关于
的方程
(
为正实数)有两个不等实根
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6967c065830fda82863c40955999b62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
(1)设曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c9b882323edba16b3625458239b6f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7488bd4cd1fb8745b1bd09426a4dc025.png)
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解题方法
4 . 已知函数
.
(1)求函数
的极值;
(2)若
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19276067b7f4617f8506524bf4f5c500.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87411cb9acff4b7a259f43c65fe34fa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5 . 已知
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6875a3eec3e51155acd51d77472af5eb.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
解题方法
6 . 设函数
,
,
.
(1)求
的最小值,并证明:
;
(2)若不等式:
成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/139e79a0726b6cbb86966ff1d405b187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b5990aadee746f2db95347eeca5cf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d3fda63bb4648ad0eae0d8a1a46d29.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96198ff22ff9f4ab495a9e680536c4f2.png)
(2)若不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b07d198b14be5a0147e708fe201b46.png)
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名校
解题方法
7 . 已知函数
,函数
是定义在
的可导函数,其导数为
,满足
.
(1)若
在
上单调递减,求实数
取值范围;
(2)对任意正数
,试比较
与
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357734fbcdf1dfee083990962f7a87e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22add663bd26e87d972a10dc5fd9ada1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e137c225bfacce424b961b9bd6fd0b4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)对任意正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdfb5f131e42bf2f78f7abbc1cad2eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982e7ec262ba657f72bdc33e0ed2b32e.png)
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2022-12-20更新
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2卷引用:安徽省六安第二中学2022-2023学年高三上学期第四次月考数学试题
名校
8 . 定义在
上的奇函数
满足
时,都有不等式
成立,若
,
,
,则a,b,c的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16a2b61f899e82296324b00403e15819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338d2755cb2b5f249e581424b6ae1521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a80b6141d5bb4445b6c03fc60e6c18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2022712773db57041926cb55263b7ed.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
9 . 设函数
(
).
(1)求
的单调区间;
(2)若
的两个零点
且
,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd0ff01a485ef92ca3532008e7454911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a4df880ff8c0322708ca3048aa665c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a751d386e10593e407e158772ae539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2bf79b4547d7d2352e6d7de8a1897ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b812be0f33aa45d87abff8cab3cf6060.png)
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名校
10 . 已知函数
.
(1)若a=1,求函数
的单调区间及
在x=1处的切线方程;
(2)设函数
,若
时,
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c207efd83d75c1f69237d97616c726.png)
(1)若a=1,求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d932dcbda7b2688b63a9bb9ef5d25f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85187c85826beeca12137805293fff77.png)
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8卷引用:安徽省池州市贵池区2022-2023学年高二下学期期中考试数学试题
安徽省池州市贵池区2022-2023学年高二下学期期中考试数学试题吉林省东北师大附中、长春市十一高中、吉林一中、四平一中、松原实验中学2021-2022学年高三上学期联合模拟考试数学(文)试题吉林省四平市第一高级中学2021-2022学年高三上学期期末考试数学(文)试题(已下线)江苏省七市2022届高三下学期第二次调研考试数学试题变式题17-22江西省吉安市永丰县永丰中学2022-2023学年高二下学期期中考试数学试题河南省郑州外国语学校2023-2024学年高三上学期第一次调研考试数学试题黑龙江省双鸭山市第一中学2023-2024学年高三上学期10月月考数学试题湖北省恩施州高中教育联盟2023-2024学年高二下学期4月期中考试数学试题