解题方法
1 . 已知
.
(1)解不等式
;
(2)记函数
的最大值为
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa059f1a6ca398089f6b1b564553660.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
(2)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86be2de99fbf7f99cd54ab399146b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c637223c5cb242ea0702cd1fea4b9b5b.png)
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2020-06-05更新
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2卷引用:甘肃省靖远县2020届高三仿真高考冲刺文科数学试题