题目内容
将(| 1 |
| 6 |
| 2 |
| 1 |
| 2 |
| 3 |
| 2 |
分析:由对数的性质知(
)0=1,
>1,log2
=-1,-1=log0.52<log0.5
<0,
由此能够将(
)0,
,log2
,log0.5
由小到大排顺序.
| 1 |
| 6 |
| 2 |
| 1 |
| 2 |
| 3 |
| 2 |
由此能够将(
| 1 |
| 6 |
| 2 |
| 1 |
| 2 |
| 3 |
| 2 |
解答:解:∵(
)0=1,
>1,log2
=-1,-1=log0.52<log0.5
<0,
∴log2
<log0.5
<(
)0<
.
故答案为:∴log2
<log0.5
<(
)0<
.
| 1 |
| 6 |
| 2 |
| 1 |
| 2 |
| 3 |
| 2 |
∴log2
| 1 |
| 2 |
| 3 |
| 2 |
| 1 |
| 6 |
| 2 |
故答案为:∴log2
| 1 |
| 2 |
| 3 |
| 2 |
| 1 |
| 6 |
| 2 |
点评:本题考查对数值大小的比较,解题时要认真审题,借助1,-1和0等中间变量进行大小比较.
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