名校
1 . 已知定义在
上的函数
,若存在实数
,
,
使得
对任意的实数
恒成立,则称函数
为“
函数”;
(1)已知
,判断它是否为“
函数”;
(2)若函数
是“
函数”,当
,
,求
在
上的解.
(3)证明函数
为“
函数”并求所有符合条件的
、
、
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3897bf276a0b6c2121917d39b369df7.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d637d748a2b196af6d91703881ae1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3897bf276a0b6c2121917d39b369df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67758380edd3796902534cf0e52cb6a1.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9697e701323f29c2b8fb4b69fdec2a50.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3897bf276a0b6c2121917d39b369df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/901a683d7456f2b2135bccb41e70e33d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad324be3bebd9c8051c5f502df2b536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51870c1132971c292e4498255210546.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4947f55ebd9b5438e46cb120d51be615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966055559e213bce8e92ef59ba03d2d4.png)
(3)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa79143526cf263a8fff8030446efa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67758380edd3796902534cf0e52cb6a1.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)
您最近一年使用:0次
2 . 设函数f(x)=2x2,函数g(x)=
,则f(x)∙g(x)=_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf35027e76f8ea593f82023973d4aba3.png)
您最近一年使用:0次
名校
3 . 设函数
(其中
都为有理数且
)
(1)若点
都在函数
图像上,求
的值.
(2)当
时,求证:对任意的两个不同的实数
,都有
成立,并指出此不等式的几何意义;
(3)当
时,设点
(
为实常数),
是函数
图像上的点,求
的最小值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc65803b30444276ae25b5e7dba719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef3e9eb0c4bd9c899886668229c4c947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3340e35c3b989c9f732691c7781a271.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc65803b30444276ae25b5e7dba719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef3e9eb0c4bd9c899886668229c4c947.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e69866076dcff686a05e9e91e61e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60025fe6bbfd7645844c9e3e7a5871e6.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3cc95f97362689d93e8fb9c25bce6dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc943952ef82d49d227d18d58b379f18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf0d139c9810361b4971904a943856b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc65803b30444276ae25b5e7dba719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82358b724051b032c7ec734a226ae84.png)
您最近一年使用:0次
2019-12-11更新
|
156次组卷
|
2卷引用:上海市奉贤中学2018-2019学年高一上学期12月月考数学试题