已知
,
.
(1)对于所有的
,均有
,求实数a的取值范围;
(2)当a=-1时,求函数
在区间
上的最值;
(3)证明:对所有的
,均有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21641326deec4f62f39550bf317221b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76af4731abaa07e3b215e719eeed954.png)
(1)对于所有的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0332c53200cf39826b26fd21e713ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae4b12d8a282854010fdec8e2ec106d.png)
(2)当a=-1时,求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f23cc411468a3882011e6a5a5a4e21d.png)
(3)证明:对所有的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43028c46155ecca08c12ba8d9f6be088.png)
2014高三·黑龙江·竞赛 查看更多[1]
(已下线)2014年全国高中数学联赛黑龙江赛区预赛试题
更新时间:2018-12-05 09:25:20
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