1 . 给定正整数
.求最大的实数
.使得
对任意正实数
恒成立,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526e037512bd10e65ebd99b73aa26341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9304e71a623c4412188a800046a970d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/897b606fdc64a88a0938d3d60c3ea3e9.png)
您最近一年使用:0次
2 . 设n是一个大于等于3的正整数,当n满足什么条件时,对任意实数
总成立:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12561dc4dfb81301bafb1ca6e157e2da.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38e053f60d2756b7d952f4fd3d547c12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12561dc4dfb81301bafb1ca6e157e2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88855926226c82896cbe8ae9fd50d670.png)
您最近一年使用:0次
解题方法
3 . 已知
,
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d229cbec798c9c278a9b5979cb38247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
A.![]() | B.![]() ![]() |
C.![]() | D.![]() |
您最近一年使用:0次
4 . 设
是集合
,且
(其中
为自然对数的底数)中所有的数从小到大排成的数列,若
,则
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a8085f0d2e4ce70976bcf530a9e68c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd7ef95943c51fcd2c41bd1732381c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a84f32b1e0493e7e36a1da48ce40a2ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次