名校
1 . 已知一次函数
与二次函数
满足
,且
.
(1)求证:函数
与
的图像有两个不同的交点
、
;
(2)设
、
是
、
两点在
轴上的射影,求线段
长度的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e640914713258eb5c63456bd4da61378.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56cb2da1c4703039336c295d22f67205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e03eb3d071b61683b31f7e309fdf4b32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc88307a35c3b2594ef2ca8cc69f45f5.png)
(1)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f8368f7daaae96338581b7ad1e5d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae905f856b26183ebe83225350df5a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9721059d158853671eaf19e39769b13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0758f3ff9f1f7109024c1ef65536c58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760ad64e1f3e9fe178e69897076db07e.png)
您最近一年使用:0次
名校
解题方法
2 . 已知函数
.
(1)判断并证明
的奇偶性;
(2)若关于x的方程
在
内有实根,求实数k的取值范围;
(3)已知函数
,若对
,
,使得
成立,求实数m的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2d08cc0467eeb8d4fcf4d876729967.png)
(1)判断并证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231ae161170f6e03cc71f17029082335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ed3636ebd750003453533da1463036b.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85615caa76462a60af6d3355a2e360b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f7c7436a45148bbb09229b6a1d7b1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7b30adc0f32921bf17384d48ff24db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/935b38d7d3343ab52e2d2fb48f1404f2.png)
您最近一年使用:0次
2023-02-19更新
|
280次组卷
|
3卷引用:四川省什邡中学2022-2023学年高一下学期第一次月考数学试题
名校
3 . 已知函数
;
(1)判断函数的奇偶性,并加以证明;
(2)若
,求
的值;
(3)若函数
在
上恒有零点,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae15b037abd9cf52ebc598c3ead7621.png)
(1)判断函数的奇偶性,并加以证明;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea7a6957adee99cb743526a1737f0feb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd86fbbc5261317ea71eeb6dfbd4541.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3738d749b7b7585b928125e40e7bd1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab18412113c332df6716847f2c97c9a1.png)
您最近一年使用:0次
11-12高一上·浙江绍兴·期中
名校
4 . 已知
(
,
为此函数的定义域)同时满足下列两个条件:①函数
在
内单调递增或单调递减;②如果存在区间
,使函数
在区间
上的值域为
,那么称
,
为闭函数
(1)判断函数
是否为闭函数?并说明理由;
(2)求证:函数
(
)为闭函数;
(3)若
是闭函数,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40ee87e42cc88a4fdf1d21bf61781224.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/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/247eaf2f3e1427d049c1e89e31aaa754.png)
(2)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac11a6a57971621e4aa220349bc6fba1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ca2651517466fb74c54c24d524d4c23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2016-12-01更新
|
919次组卷
|
6卷引用:四川省泸州市泸县第二中学2020-2021学年高一上学期第一次月考数学试题
解题方法
5 . 设二次函数
.
(1)当
时,求函数
在
上的最小值
的表达式;
(2)若方程
有两个非整数实根,且这两实数根在相邻两整数之间,试证明存在整数
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cacf4a593a5dd327c323627138d19178.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc6b9950993503d1bc852e076fa037f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6efacc740d6a5e0678c60efa0e0e035b.png)
您最近一年使用:0次