解题方法
1 . 已知
,记
(
且
).
(1)当
(
是自然对数的底)时,试讨论函数
的单调性和最值;
(2)试讨论函数
的奇偶性;
(3)拓展与探究:
① 当
在什么范围取值时,函数
的图象在
轴上存在对称中心?请说明理由;
②请提出函数
的一个新性质,并用数学符号语言表达出来.(不必证明)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df35e5cc4e070eb3ad901cdb5226ef5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ffecb03c47be920254c4ccffa5b222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)试讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(3)拓展与探究:
① 当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
②请提出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次
23-24高一上·上海浦东新·阶段练习
名校
2 . 已知函数
(
,常数
).
(1)求函数
的零点;
(2)根据
的不同取值,判断函数
的奇偶性,并说明理由;
(3)若函数
在
上单调递减,求实数
的取值范围,证明函数
在
上有且仅有1个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a14a2156c6690b324f7929b3b3553970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)根据
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f0be268c091289f25b2d4cb9f8f789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2edd8edcb21bd41584daf9bb95a5c7.png)
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3 . 下列几个命题:①若方程
的两个根异号,则实数
;②函数
是偶函数,但不是奇函数;③函数
在
上是减函数,则实数a的取值范围是
;④ 方程
的根
满足
,则m满足的范围
,其中不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73bc525a2bfdf950afa9d73807b9175e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b394e40fa8dd611854991f7f5a664198.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54348af141f4025b4535de3c24509051.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6049468a247227dcd9d0b83fe0e0d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47fe863357e026cd960fea54a3ac827d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b491dad59baf9ee49e505020205ce27b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6323f51afa5311ca387242093afd123e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a07724994828bb33cdebbf97979fcc3.png)
A.① | B.② | C.③ | D.④ |
您最近一年使用:0次
2020-09-18更新
|
280次组卷
|
4卷引用:辽宁省六校协作体2019-2020学年高一上学期期中数学试题
辽宁省六校协作体2019-2020学年高一上学期期中数学试题黑龙江省安达市第七中学2019-2020学年高一3月月考数学试题(已下线)专题2.3 二次函数与一元二次方程、不等式(精练)-2021年新高考数学一轮复习学与练辽宁省沈阳市市级重点高中联合体2020-2021学年高一上学期期中数学试题
名校
4 . 设函数
(其中
为常数).
(1)根据实数
的不同取值,讨论函数
奇偶性;
(2)若
,且
在区间
上单调递减,求实数
的取值范围;
(3)若关于
的不等式
在
时恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef79a4c2851a7e5e24018fd076406da8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)根据实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a55fc27d9554bc93298f29373f4e9e13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13e38a5ee18ecf4af2d9a8443b4a7bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a749285bc6d24bc6e3c27157ef20a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
5 . 函数
.
(1)根据
不同取值,讨论函数
的奇偶性;
(2)若
,对于任意的
,不等式
恒成立,求实数
的取值范围;
(3)若已知
,
. 设函数
,
,存在
、
,使得
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db58afeac1cfe83233a8887e16f59b7.png)
(1)根据
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5f421939ee855f25927e7570d82c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa43aa41923960f8af7e8f1b1bd1695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7aede2e847d081811f62ce462906167.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64587952d138b00a1c463df835f5500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28e384ba050b238e11f7c74d3002aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032e8dc00cdc96860c9cbf8ac09677fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2019-12-09更新
|
659次组卷
|
3卷引用:上海市新川中学2018-2019学年高三上学期10月月考数学试题
名校
6 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e241ad67832ef92e201241fbb4239d2.png)
(1)若
,写出函数
在
上的单调区间,并求
在
内的最小值;
(2)设关于对
的不等式
的解集为 A,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e241ad67832ef92e201241fbb4239d2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
(2)设关于对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e71da41961d96784f3ea7198b838a51b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45242b802854eb7fc3ed681c4acdbf58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-11-27更新
|
245次组卷
|
2卷引用:江苏省苏州中学校2023-2024学年高一上学期期中数学试卷
名校
7 . 已知函数
,
(
且
),且
.
(1)求b的值,判断函数
的奇偶性并说明理由;
(2)当
时,求不等式
的解集;
(3)若关于x的方程
有两个不同的解,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6528de53e54d52ef607e52bc6e452b28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c5d20a1a48a36e5e6fae2df7a1918d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01bea8bf593f594c51fc7cc547482bee.png)
(1)求b的值,判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd791cdf876b9a9e58f251f803aeb66.png)
(3)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86eb1fc4c70398c3820be4246c17426e.png)
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2023-01-10更新
|
827次组卷
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4卷引用:天津市南开中学滨海生态城学校2022-2023学年高一上学期期末数学试题
天津市南开中学滨海生态城学校2022-2023学年高一上学期期末数学试题黑龙江省富锦市第一中学2022-2023学年高一下学期第一次考试数学试题湖南省常德市第一中学2023-2024学年高二上学期入学考试数学试题(已下线)第四章 指数函数与对数函数(类知识归纳+类题型突破)(4)-速记·巧练(人教A版2019必修第一册)
名校
解题方法
8 . 已知函数
.
(1)判定并证明
的奇偶性和单调性;
(2)求不等式
的解集;
(3)函数
,若存在
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974d9aea54bbdc92508998a882e4f9f5.png)
(1)判定并证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7757dd1da30ac3e42f910f89ca85b17.png)
(3)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d351b199bdf658ba647c7c410294e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45745b3b43bcc8c406bac90ce9bcf3d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
9 . 设
为定义在R上的函数
的导函数,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.若![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2022-04-14更新
|
484次组卷
|
2卷引用:人教A版(2019) 选修第二册 过关斩将 名优卷 综合检测
解题方法
10 . 设
是
上的减函数,且对任意实数
,
,都有
;函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89f1282f5b7d6742f78c81203e0a3da.png)
(1)判断函数
的奇偶性,并证明你的结论;
(2)若
, 且存在
,不等式
成立, 求实数
的取值范围.
(3)当
时, 若关于
的不等式
与
的解集相等且非空, 求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd384d86840b7b158af41f56fe29c7d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89f1282f5b7d6742f78c81203e0a3da.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce8b905f6ad68813fc63772d6a9d78e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/757bf8295a13223d2a6566815524a946.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec403217773ee3cc04f8cd68ae8721e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fa38ca27c6c0c40d5e36b2ae4fb7ba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b39a5e5177b18527137d04e37bb0289.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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