1 . 已知函数
.
(1)求证:f(x)在(-∞,0)上是增函数;
(2)若
,求
在
上的最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc85e8ec462b84e34485e505a766a339.png)
(1)求证:f(x)在(-∞,0)上是增函数;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2067a6792ec6f17f8a34d9d49366701a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1279ef84071f5ad7c4c1681357edd84.png)
您最近一年使用:0次
2 . 已知定义在
上的函数
的图象关于原点对称,且函数
在
上为减函数.
(1)证明:当
时,
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6636ade5165582172a1d83c64c9a736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6636ade5165582172a1d83c64c9a736.png)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a63e551d9f5512f4893d6baf5d350635.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df89f315c16038fafeac4fa635d07dd0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d67121c14d64d3b84d3539f915f0776.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2016-12-04更新
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626次组卷
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3卷引用:2017届甘肃武威二中高三上学期月考二数学(文)试卷