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1 . 已知函数
.
(1)解不等式
;
(2)若正实数a,b满足
,试比较
与
的大小,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62aae1eb16c65e26d32471fc93bc3c51.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ac661cdecd599909baa5474145adb4.png)
(2)若正实数a,b满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55fd7dacba9b324dd1be79002e0bac90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2789e4dc57686f83a68e42c41eef19be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26bacff688c565107938b80708b7b90e.png)
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2018-04-23更新
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394次组卷
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3卷引用:四川省资阳市2018届高三4月模拟考试(三诊)数学(文)试题