名校
解题方法
1 . 命题
,命题
函数
且
在
上单调,则
是
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e04d795dfbbc8d43c3507a679f8caec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f90c36a5979a1700b4e1f4b127d41c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fa1476cf3552b9ae91ef039b1c6c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ec5e0de82f13e711b23f9ae37cdac3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2 . 已知
,且
,若
,且
,则正整数
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da32adb27f0b1165ff54ae424d3e8b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6941c343e7d71a66146dc40bf148c9a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e46773d78620bb2abe768647839649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7dcdc12243229c38d59daec142c4d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
解题方法
3 . 已知函数
是定义在
上的偶函数.
(1)求实数
的值;
(2)请问是否存在正数
,使得当
时,函数
的值域为
,若存在这样的正数
,请求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e20702169dacaf00486c2f69c0abb47d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d028846b8614318fbf90387d13c75b5.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)请问是否存在正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a56806c9bf7927769af420fdabe96cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/119b20f27ee885c82edf447d24cc0cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
您最近一年使用:0次
2024·全国·模拟预测
解题方法
4 . 函数
在
上单调递增,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8174d89ef986938051c15f06b1766f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f248318141e0016d38f9f5a692797f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 偶函数
的定义域为
,函数
在
上递减,且对于任意
均有
,写出符合要求的一个函数
为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61acb0de83f6ff45e7838b03b04f561b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711d6e4d873ff21b365e9ed00982447a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2024-04-08更新
|
140次组卷
|
3卷引用:情境6 答案不唯一开放命题
名校
解题方法
6 . 已知函数,若对任意
都有
,则实数a的取值范围是( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
7 . 已知函数
在
上单调递减,则实数a的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2771a3508c4f12537852eff11ca0ed3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
8 . 已知函数
.给出下列四个结论:
①
;
②存在
,使得
;
③对于任意的
,都有
;
④对于任意的
,都有
.
其中所有正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5f76bfcd4823e9d62681bc8a153d920.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59fc697c868591547e6388690ca7a355.png)
②存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d2bb539dd6fc8d1457154617b3658d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149cbbb99a05da5a1ed7f9259645b9db.png)
③对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b854030ff1216596f46d03a9dd05351a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44319529e0530b26b1e76d839371322b.png)
④对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264e54b81230f39733dcc4f39cf31c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9358a8dd034ee488f71a35a45f70e893.png)
其中所有正确结论的序号是
您最近一年使用:0次
名校
9 . 已知函数
.
(1)若
过定点
,求
的单调递减区间;
(2)若
值域为
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7a910b66a1fe7511f7f3b67ecd3307.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
您最近一年使用:0次
解题方法
10 . 函数
的单调递减区间是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10dc7912438a806767f39289d4125934.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次