解题方法
1 . 定义域为
的函数
满足
,当
时,函数
,设函数
,则方程
的所有实数根之和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/558a2ecdce526b2da399693537426986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24aa16b780156e18f12baa2b8ee0f9a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aad8ca0dc9a54c3346d495bb66740b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b2a9ea24cc70c6edeed31c2eb42db6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0008d46dc238d710a1efe7e2c17237.png)
A.5 | B.6 | C.7 | D.8 |
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2024-04-13更新
|
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|
2卷引用:四川省泸州市2024届高三第二次教学质量诊断性考试文科数学试题
解题方法
2 . 已知函数
,若方程
的实数解有3个,则实数k的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1cff3aae0dd16c20dc8647fdee914f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7072fcba028cb70e42a9f8a69c5e925e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
3 . 已知函数
.
(1)当
时,解不等式
;
(2)若
的最大值是
,求
的值;
(3)已知
,
,当
的定义域为
时,
的值域为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd65aaa98f9141948893315ce9aafa3a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a882037b9ce104ecc496e0f31a139361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffbb4e6b92463a41bd9460dac6b1ca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e14206c7d228a7c2259a7b27da8813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa0c204bd6bc0fa0ab5d41b6e738971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2024-01-25更新
|
189次组卷
|
2卷引用:四川省泸州市泸县第五中学2023-2024学年高一下学期开学考试数学试题
4 . 已知函数
.
(1)若
,证明:存在
,使
成立;
(2)若
成立;求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c45e0b413ed96301478521ac23fce0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d65b86d84efeac69fddfee74e7f751ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8088f8ec22366394c4be41dea55861c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c984d922ddea48e5fd99876acc38becb.png)
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名校
5 . 若函数
在
上恰有一个零点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc8f1741bd0b2de65696d285c79c1a4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a7e88b74f492f89e21e4cf65353bdb6.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2024-01-24更新
|
187次组卷
|
2卷引用:四川省泸州市泸县第五中学2023-2024学年高一下学期开学考试数学试题
解题方法
6 . 函数
的零点一定位于下列哪个区间( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad3991ffb302f2c216fbc7f4e38a470.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-01-01更新
|
616次组卷
|
4卷引用:四川省泸州市古蔺县蔺阳中学校2023-2024学年高一上学期期末数学模拟考试试题
解题方法
7 . 函数
,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4416a7568929515c1311d637dc48e5.png)
A.![]() ![]() |
B.函数![]() ![]() |
C.若![]() ![]() |
D.函数![]() ![]() |
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解题方法
8 . 对于函数
,存在实数
,使
成立,则称
为
关于参数m的不动点.
(1)当
,
时,求
关于参数1的不动点;
(2)当
,
时,函数
在
上存在两个关于参数m的相异的不动点,试求参数m的取值范围;
(3)对于任意的
,总存在
,使得函数
有关于参数m(其中
)的两个相异的不动点,试求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ac8afb8d3acab3ad65d18be3c5c5549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d615705178eb49875e3d252892ab0a76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f06408895febc126c2ae409e807349c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71bb7883ea87e6275472dbe14ee62357.png)
(3)对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2143a6cfd3526c4f5795328baa51b0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca067206ac6262c3ae24bb259de6ea6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17bda892497cea43df67db57b4e2a07a.png)
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9 . 给出下列命题:对于定义在
上的函数
,下述结论正确的是___________ .
①若
,则
的图象关于直线
对称;
②若
是奇函数,则
的图象关于点
对称;
③若函数
满足
,则
;
④若关于
的方程
有解,则实数
的取值范围是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a3556b7e9458ec54d4cf1de17a5649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e356a6e54a669fda721085096c8416db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
③若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a224cb967cba48c283eccaaf0fcfe4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8b8ad78a867c8aa81fcd69c5c914336.png)
④若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3114e6be0136ce59c9ab145e0c92d63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0109d06b8be2e402b5ffbb0aeb501009.png)
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名校
10 . 已知函数
,关于
的方程
有6个不相等的实数根,则实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0ddfabf1df8baa580e217e27f8d3df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a87be10fbcbbb6d96842befdbb176a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次