1 . 已知函数
,若函数
在区间(t,t+1)(t
R)上有最小值,则实数t的取值可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca50a9c85f03d9396a76cac192c24332.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
A.-2 | B.![]() | C.0 | D.1 |
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2022-02-28更新
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2卷引用:江西省景德镇市2021-2022学年高一上学期期末数学试题
名校
解题方法
2 . 已知函数
是定义在R上的偶函数,且在区间
上单调递减.若实数
满足
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e58768fc0df02f60aa54d00fe063c52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d34f499ef69ca850fe9df8f2dbaec08a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知函数
.
(1)若
对于任意
恒成立,求
的取值范围;
(2)若函数
,
,是否存在实数
,使得
的最小值为0?若存在,求出
的值,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/003d7a63ca8ef4ad13eafe838a1cf50c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b16d19364faf66874e0ba47a240ec50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9d43050ae79fa06da5ec3c7719c29d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11199a3fe706752668ded4f197505684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2022-02-22更新
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896次组卷
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3卷引用:江西省抚州市临川第一中学暨临川第一中学实验学校2021-2022学年高一上学期期末数学试题
名校
解题方法
4 . 已知函数
.
(1)求
的定义域;
(2)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3b7b7ec02a04246e35077eef2c8c22.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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2022-02-21更新
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521次组卷
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5卷引用:江西省2021-2022学年高一上学期期末调研测试数学试题
解题方法
5 . 已知
,
,
,则
,
,
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b60590e6271ba8f0127bd5e752579afa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147d9ad8ff3f13397c86fc00290d358c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aab0b1c5315dac2736adea359857e996.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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解题方法
6 . 已知函数
,记
,若
在区间
上是增函数,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74088e31acd9bc94dc8bc34e616bef64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a2e6f2ab7a1acbbfe0d049f7b3ce04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
7 . 已知
且
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef15eb20c48eb1d42f1a6d39a237b1e.png)
(1)求函数
的解析式,并判断其奇偶性和单调性:
(2)当
的定义域为
时,解关于m的不等式
.
![](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/9ef15eb20c48eb1d42f1a6d39a237b1e.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54bd764f2774707a945e3fbda4783f02.png)
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2022-02-15更新
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292次组卷
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3卷引用:江西省景德镇市2021-2022学年高一上学期期末数学试题
8 . 已知f(x)是定义在R上的偶函数,当x≤0,时,
.
(1)求f(x)的解析式:
(2)若
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ed150ae3a0fe2d1990bb4bea6124007.png)
(1)求f(x)的解析式:
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d79b62e8dad4711b851a3dff1d2eb2a.png)
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9 . 已知
,其中
为奇函数,
为偶函数.
(1)求
与
的解析式;
(2)解关于
不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa8abfd8894388831086457e58c3954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e681284b42fa7ea01193024d59068d.png)
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名校
10 . 已知函数
,
,对于任意
,存在
有
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9919a46066c75cb55e18c30f7a2d9f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259e10b808fa4b7aaf7d26fc72a017b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b424bbc2f301c0ce92ed914fd49fa98c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c00410ae5e5a932ff408eb0777afa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6154e00013d9dee84c0e941f676ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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