2025高三·全国·专题练习
解题方法
1 . 已知函数
.当
时,求函数
最大值的表达式
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f9d0e54452c83ea8f78af0c608eb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0db2cae2e4d9c51adb60fe0a4da5caa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e93815f534a9ba003799aef2a53a242.png)
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2025高三·全国·专题练习
2 .
的定义域为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e7d79b7b91deb70aef8a35d671c088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
3 . 已知函数
是定义在
上的奇函数.
(1)求实数
的值;
(2)判断
在定义域上的单调性,并用单调性定义证明;
(3)
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cbc2ed4bad6431037602fc427e6756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5667bc1ea875422f618529aa5f254f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e9b1365d76a10c212db1c91c5f91f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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4 . 已知函数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0154fef6bcf1a7045c21f13db7a50080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71599cd707909eb30d2a54be7f8c966.png)
A.![]() | B.![]() | C.2 | D.3 |
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5 . 已知集合
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bb2f64356f0dd3e42da768d55b7f051.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a0909f3c99df9031a14397cf8c7673b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3af1c9be8b4e4556332bdeb966570b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.0 | B.1 | C.2 | D.4 |
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6 . 已知集合
,
,若
中有2个元素,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3423f4eca84d05a949e0df80da99aeff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c90eb9f65e9e5b2ed49244e0b51d1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 已知集合
,
,那么集合
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca717c6a55e786238e64f7ebd69b9b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e391689719c41c2118c3b1e1227a93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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昨日更新
|
310次组卷
|
2卷引用:云南省保山市第一中学2023-2024学年高一下学期期中教学质量监测数学试卷
8 . 设
.
(1)求
的值;
(2)若
,求t值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1737edb555a36bf43140c97828d5532e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6edd6674eec85861b8a8587d628541ce.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35bf196575406571a6f59ced8d5cb3db.png)
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解题方法
9 . 已知
,函数
是奇函数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1665a809bdb5f341018d2bf585cedc82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
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解题方法
10 . 已知函数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c2e84e383e0d12a54d279e98f66bdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb4138e3a956d50c217cdd4799ff1edd.png)
A.14 | B.5 | C.1 | D.-1 |
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