1 . 在给出的(1)
(2)
(3)
.三个不等式中,正确的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec02e9a092068144ff7303a32272fa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e1fb3675caa244cb176f10e25ff865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fb53dcea74befd1f252f4f6e82cdd7d.png)
A.0个 | B.1个 | C.2个 | D.3个 |
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解题方法
2 . 设两个实数a,b满足:
,则正整数n的最大值为( ).(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ff6c413ffb74d6be8339ec3d486d4bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357b40f90fee90089105a478abb6b3ba.png)
A.7 | B.8 | C.9 | D.10 |
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