名校
解题方法
1 . 若
,
,
,则a,b,c三者的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1e6c4eb1b4803abb38f4396fb0b21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e7782eb28f6e0fb57c161c6e221357c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65466c9450cccd318a11096cc2924bac.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 函数
的定义域是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30869747f86a398db5120957144afdee.png)
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3 . 已知存在正数
,
使不等式
成立,则
的取值范围___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cafd5afec17737d06bbc59956967a15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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4 . 已知定义在
上的函数
(
为实数)为偶函数,记
,
,
,则
、
、
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e33fafcc596cdd93105b9ac7f8cbb121.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9cef20bd3bd9a12d62e51042a8f8a3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6660c818cbcb47952885103ee94146cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40779d30ca6f2e6421503cd2694f3391.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 下列函数中,在定义域上是单调递增是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 已知函数
,
.
(1)若函数
在
有两个零点,求
的取值范围;
(2)若对于区间
内每一个
,都有
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1426f0f2beccc17f16aca384ae0ee08c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad10dd42cfb44d23b62cbbab566eada0.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2ec965488c7e1cea085463c7731285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若对于区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497199a00f177af4c593e0e715be97f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bfad36fe0f786f6c2a89230dad7361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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7 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a11186577d9a1e0a37742de66121e1.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2072caa031e4acbce8e4b62e851d6e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a11186577d9a1e0a37742de66121e1.png)
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2022-01-12更新
|
600次组卷
|
5卷引用:广西玉林市陆川中学2017-2018学年高一12月月考数学(理)试题
广西玉林市陆川中学2017-2018学年高一12月月考数学(理)试题天津市第四十二中学2023-2024学年高三上学期10月月考数学试题安徽省六安市第一中学2017-2018学年高二上学期开学考试数学试题天津市河西区2021-2022学年高三上学期期中数学试题(已下线)专题04 指数与对数-中考点大串讲(苏教版2019必修第一册)
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8 . 已知
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d45c3509b2f2a43df7d2aca7208078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adfe2aa74df3be42e470e85b4ac347ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21cfdedd56f5f3c0c22984cece74ce8a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-12-28更新
|
253次组卷
|
2卷引用:甘肃省静宁县第一中学2020-2021学年高三上学期第三次模拟考试数学(文)试题
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9 . 已知集合
,集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e463ff394ee970c2aeb30a39e33c3427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b043c27926a0cd3f7b0ba904047be57a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2020-12-27更新
|
506次组卷
|
2卷引用:天津市滨海新区开发区一中2020-2021学年高一上学期12月阶段性检测数学试题
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10 . 下列命题正确的序号为________ .
(1)命题“
,
”的否定形式是“
,
”;
(2)若函数
(其中
,且
)的值域为
,则实数
的范围为
;
(3)函数
在
上是减函数,则实数
的取值范围是
;
(4)已知函数
,若
,且
,则
.
(1)命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6db1508887f3b806b772c328ff5ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1485a4756c56f1126b9825d5019d544c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd76a22a641b658e968fd5476d3e4ee.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd99515e095fbc23f197bcb539e5904.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/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2397df3279607612ea3cbef101ee0bf3.png)
(3)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8c83f971b8fd5887e6037e43bf44bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e88ebfb5c0d6cce558b515be06404d.png)
(4)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37c90828604a835b105538d8895262d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e14206c7d228a7c2259a7b27da8813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aba934874cc9f2ab272fdff67ea23bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c71152396d26b0c146e6a3c042bbdae9.png)
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