1 . 已知函数
.
(1)设
,当
时,求函数
的定义域,判断并证明函数
的奇偶性;
(2)是否存在实数
,使函数
在
上单调递减,且最小值为1?若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4c27aa70003161314c176e59dc638e2.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4d19e4f6b9c88373596920e418daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bacbd8f85c7ed750646ecf8f5b11071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2019-12-31更新
|
332次组卷
|
4卷引用:山西省太原市第二十一中学2019-2020学年高一上学期期中数学试题
山西省太原市第二十一中学2019-2020学年高一上学期期中数学试题湖南省张家界市慈利县2019-2020学年高一上学期期中数学试题(已下线)专题4.7 对数函数-重难点题型精讲-2021-2022学年高一数学举一反三系列(人教A版2019必修第一册)北京市第五十七中学2022-2023学年高一上学期12月月考数学试题
名校
2 . 已知函数
.
(1)若m=1,求函数f(x)的定义域.
(2)若函数f(x)的值域为R,求实数m的取值范围.
(3)若函数f(x)在区间
上是增函数,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f85c02cb726af0a33f92edd33961f2.png)
(1)若m=1,求函数f(x)的定义域.
(2)若函数f(x)的值域为R,求实数m的取值范围.
(3)若函数f(x)在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec7458e2398877563fddb9077d300c57.png)
您最近一年使用:0次
2019-12-29更新
|
401次组卷
|
2卷引用:福建省泉州市晋江市子江中学2019-2020学年高一上学期期中数学试题
名校
3 . 已知函数
在区间
上的最大值为2.
(1)求实数
的值;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0fb0ed765325b27c405d8071cc9d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390c620c0fd4a2cd8622171bdaf05f5d.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65fec96d48b1b3852e922f5802b5c218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2019-12-28更新
|
863次组卷
|
8卷引用:贵州省黔东南苗族侗族自治州东南州名校2019-2020学年高一上学期期中数学试题
4 . 已知函数
(
且
).
(1)判断
的奇偶性并证明;
(2)若
,判断
在
的单调性并用复合函数单调性结论加以说明;
(3)若
,是否存在
,使
在
的值域为
?若存在,求出此时
的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095897564b2bb696f4cb3e8016b3fa01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060e7930731eddbcfac592b808e9b698.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8493a0cd10d3d0399173c04163740a38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71853a6755d199d67e72693ee72aec92.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe9e329f2730b2be926b121f1ae04c0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d61c2a73aed7ffff74baa4f0460fb00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d31e72421c0d65e00edb2acce12abffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7549743c69430ab8609a5424b02b9239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
5 . (1)已知
,求
的取值范围.
(2)已知
求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d7fa6b877afc8156681e5dc62e6cfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0fa40eaa888f24503db7f67391396f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
6 . 若对于任意a,b∈(0,+∞),当a≠b时不等式
恒成立,求x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711f2628f5bee865ec51e94ebf082a87.png)
您最近一年使用:0次
名校
7 . 已知函数
(
) 为偶函数,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06af793e5ea8e0efe4b85ce327ea4c89.png)
(1)求
的值,并确定
的解析式;
(2)若
(
且
)在
上为增函数,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e914784866c1e051f7c10330d4ac979f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d4999a846dafaf3fe0ef8708633b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06af793e5ea8e0efe4b85ce327ea4c89.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06581bfaf7945928ff717daee74ce28d.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/a248e47163191168a1b363937eebd618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
8 . 已知函数
(
且
).
(1)若
,求
的单调区间;
(2)若存在实数
及
,使得
在区间
上的值域为
,分别求
和
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eb16ab4bf05e71c6420a74293ec341b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b70aeff7c01e637f9caac346798ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64d924836b4292239d9726c6473d7f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c81e363a5162f4574d7c311c63c223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-12-16更新
|
628次组卷
|
2卷引用:重庆市康德卷2018-2019学年高一上学期末数学试题
名校
9 . 已知函数
满足
,其中
为实常数.
(1)求
的值,并判断函数
的奇偶性;
(2)若不等式
在
上恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f344e1a486884be2b59e3fbac0e1c5a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6266a5b47e313651b98ca48c91a754fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e29fa09da901c61c799c1ef61cef839.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3af98533fbc91ae52c1eeaf0592a86f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2019-12-04更新
|
305次组卷
|
2卷引用:上海市华一附中2018-2019学年高三上学期第一次月考数学试题
名校
10 . 已知函数
,其中
.
(1)当
时,求
的值域和单调减区间;
(2)若
存在单调递增区间,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045dbe7e2d3a58b41451c41e0fa172be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b93abe2a497b7ef3cb8c1b9de8492e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次