1 . 已知函数
,
.
(1)当
时,讨论
的单调性;
(2)若当
时,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7274790221c5366f4c84f0503f5eb531.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dcde1838ad35975a361df9a1d7bc128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2022-05-17更新
|
756次组卷
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2卷引用:海南省2022届高三下学期学业诊断大联考(五)数学试题
2 . 已知a>0,圆C:
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec6c8011f0f9d3363d5de4d330763a5.png)
A.存在3个不同的a,使得圆C与x轴或y轴相切 |
B.存在2个不同的a,使得圆C在x轴和y轴上截得的线段相等 |
C.存在2个不同的a,使得圆C过坐标原点 |
D.存在唯一的a,使得圆C的面积被直线![]() |
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2022-04-28更新
|
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6卷引用:海南省海口市2022届高三下学期学生学科能力诊断数学试题
海南省海口市2022届高三下学期学生学科能力诊断数学试题广东省高州市2022届高三第二次模拟数学试题湖北省高中名校联盟2023届高三上学期第一次联合测评数学试题(已下线)考点19 直线和圆的方程-1-(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)(已下线)江苏省南通市如皋市2022-2023学年高三上学期教学质量调研(一) 数学模拟试题广东省佛山市顺德区第一中学2022-2023学年高二上学期期末数学试题
3 . 已知函数
.
(1)若
,证明:
;
(2)若
有两个不同的零点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6832e36232df491cb74747c7f0e91228.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96ae6d5e25c5bc3afe1ca6d86c219a2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d96955796f392b93bfe98e749a0578d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
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解题方法
4 . 已知函数
.
(1)当
时,
恒成立,求实数
的取值范围;
(2)当
时,
,方程
的根为
、
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cae7e0598d342450e040d6bc3bcee683.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4f8acae861c1cdc6d9d9c625f7cf69b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2818807dce7e9ec5514de572c3cc644.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/684bcf84f0a266515bfafde0da903050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/443da58a50621ba7af08405b809fb5b5.png)
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2022-04-08更新
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1194次组卷
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5卷引用:海南省中部六市县2022届高三模拟考试数学试题
海南省中部六市县2022届高三模拟考试数学试题山东省潍坊市2022届高三下学期高中学科核心素养测评数学试题(已下线)临考押题卷02-2022年高考数学临考押题卷(新高考卷)广东省茂名市2022届高三下学期调研(四)数学试题浙江省金太阳2022届高三下学期5月高考仿真考试数学试题
名校
5 . 已知函数
.
(1)判断函数的单调性;
(2)若对于任意的
,都有
,求整数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/262e6525c18b7d69c433558a818a077d.png)
(1)判断函数的单调性;
(2)若对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4921923069c4f38a0af1ff8637e35b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eb03d34204f4c53f968aa2b4512d785.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
6 . 已知函数
(
为自然对数的底数,
).
(1)求
的单调区间和极值;
(2)设
,若对任意的
,都有
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d720208893bf36a4f5e1247d8e2e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545a1bbe05984c25cf64392af051f389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af6f04dea3fe074b903012e06b887e86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
7 . 已知函数
.
(1)当m=1时,求f(x)在[1,e]上的值域;
(2)设函数f(x)的导函数为
,讨论
零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cb24718f5f35dfa0a16562452a9896c.png)
(1)当m=1时,求f(x)在[1,e]上的值域;
(2)设函数f(x)的导函数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e808873b814cf720131eeed83e88bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e808873b814cf720131eeed83e88bf.png)
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2022-03-25更新
|
1224次组卷
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6卷引用:海南省普通高等学校招生2022届高三诊断性测试数学试题
名校
解题方法
8 . 函数
.
(1)若
在
上单调递增,求a的取值范围;
(2)若
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9857c6a34702e72db6c196e149e74093.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ff8dca35b759d3051b62badd7d76bc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7afd2ab66f83a0d2fecda892d06e2e7a.png)
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2022-03-11更新
|
2391次组卷
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4卷引用:海南华侨中学2022届高三下学期全真模拟考试数学试题
解题方法
9 . 已知函数
.
(1)若
,求
的最值;
(2)若
,设
,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6a09fe726d3ddde30566e64900dcab.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef9d3dde2b873bbdeadb0b0ad736677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ec808ad60dbf016632ec816eaca1df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e163cc53b8f679e84de4cfa4fd99c1d9.png)
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2022-03-11更新
|
500次组卷
|
2卷引用:海南省2022届高三下学期学业水平诊断(三)数学试题
名校
10 . 已知函数
(
且
).
(1)当
时,求曲线
在点
处的切线方程;
(2)若不等式
对任意
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b91e73e1ef51d9b5f60b2834f83d545f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
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2022-03-05更新
|
1786次组卷
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3卷引用:海南省海口市琼山华侨中学2021-2022学年高二3月月考数学试题
海南省海口市琼山华侨中学2021-2022学年高二3月月考数学试题山东省济宁市2022届高三一模数学(3月)试题(已下线)专题08 利用导数解决函数能成立恒成立问题-2022届高考数学一模试题分类汇编(新高考卷)