名校
解题方法
1 . 已知函数
,
(其中e为自然对数的底数),设m,n分别为
,
的零点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea58bd7aabdb9581b39aa53f12bece92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259ef9d3126b695f2b69c0657e475e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
2 . 已知函数
是定义在
上的奇函数,当
时,
,当
时,
.若函数
恰有
个零点,则实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da3a6d011679952771607b3a166676b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636289ad84b4a3a51095dd32ca201f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/567677bc05226af7cf5677b32f4e93f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca542e78b7d77d008c9c4752afa91a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42293d1ade97451459b27491bc9a4201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851f2493f34217519f0e91d1744997f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024-02-03更新
|
349次组卷
|
2卷引用:吉林省吉林市普通高中2023-2024学年高一上学期期末调研测试数学试题
名校
解题方法
3 . 已知函数
恰有3个零点,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d14ccd94ab1a850796e0a9bd3e6b6ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-12-27更新
|
336次组卷
|
4卷引用:吉林省四校2023-2024学年高一下学期期初联考数学试题
名校
解题方法
4 . 已知函数
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ad278f6f732d5e465cd5e201d11465.png)
A.函数![]() ![]() |
B.若方程![]() ![]() ![]() ![]() |
C.若方程![]() ![]() ![]() ![]() |
D.方程![]() |
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名校
解题方法
5 . 已知函数
,
,方程
恰有两个不相等的实数根
(
),设
,则实数t的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5bae7ea705efd30b2a55f859605a2d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a74ac726814e1324985f1fdd4bee577d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9587df831df1af5e7dd6be5fdc7bd8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6356b9dff46fc94c657a632d05bf0a.png)
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解题方法
6 . 已知函数
.
(1)若函数
,且
是增函数,求实数
的取值范围;
(2)若对任意的正数
,不等式
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48521dad7bd76318537864ff0600e19d.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04aeccb04416ef1eea7c05ab59d10b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89eea593c79973e97f6f3cdf621cdfc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若对任意的正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10e2d6ef9ef981a5a3cd7608cb8e8ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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7 . 已知实数
是函数
的零点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/747a6b348ea560058f15311241c441cc.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
解题方法
8 . 定义:若函数
的值域是定义域的子集,则称
是紧缩函数.
(1)试问函数
是否为紧缩函数?说明你的理由.
(2)若函数
是紧缩函数,求
的取值范围.
(3)已知常数
,函数
,
是紧缩函数,求
的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)试问函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef555a47258a9ce115189413c2e4ee63.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50ca1eddc194c3069d1caa62ff3a3e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)已知常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed228ab22e5d51eea0c12215e1dafe8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21cef43169928473f9145e7df54edef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024-04-15更新
|
249次组卷
|
3卷引用:吉林省白山市抚松县第一中学2023-2024学年高一下学期4月月考数学试题
9 . 对于任意给定的四个实数
,
,
,
,我们定义方阵
,方阵
对应的行列式记为
,且
,方阵
与任意方阵
的乘法运算定义如下:
,其中方阵
,且
.设
,
,
.
(1)证明:
.
(2)若方阵
,
满足
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e84c30444f13d37ada78285dc4f83b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e76d1d8e50dda4d50229a8a20c57e58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc29ee719feeedfbc8c529cf11348abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33e11a5b70e1e2e685d1783a4707872e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4ec97af19b15cd584710a3faf30c716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f44b167b4e75af29a18637f71f3ebfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b39fcc210ec89dbc7d684a70a34542c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d17ebf9f595cdb9dab841dec703b512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16a4ed514630bd37fab9765b3fb5f2cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709d09c76c222f156df31a1bba5f2ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e4a35eca00ea2f4580d62515d54d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95035eeae686e910be45f08093e406c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e7d309cb178b71c6e56f5b7f610413.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/109b4ece615b08a89a7f69d436f448b0.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addb109c49695bce8c5b5cf4fad95772.png)
(2)若方阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2221c60bc15c59fa1b3ac74a23b57cdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90fa9bfe3bf3e3b7265da3c49d31f1bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35536fb98d8b24cead230c8df95fd9d3.png)
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7日内更新
|
139次组卷
|
3卷引用:吉林省通化市梅河口市第五中学2024届高考模拟预测数学试题
10 . 已知函数
满足:对
,有
,若存在唯一的
值,使得
在区间
上单调递减,则实数m的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e221ad8f28f138eac3d428051da7ace7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4a6f10336eaca61cb1a302a76f5757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/402fca14f868a8d8c23294ec2c21cf85.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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