题目内容
计算下列各式的值:
(1)(ln5)0+(
)-0.5+
-2lo
;
(2)log21-lg3•log32-lg5.
(1)(ln5)0+(
| 9 |
| 4 |
(1-
|
| g | 24 |
(2)log21-lg3•log32-lg5.
(1)(ln5)0+(
)-0.5+
-2lo
=1+
+
-1-
=
.
(2)log2l-lg3•log32-lg5=0-(lg2+lg5)=-lg10=-1.
| 9 |
| 4 |
(1-
|
| g | 24 |
| 2 |
| 3 |
| 2 |
| 2 |
| 2 |
| 3 |
(2)log2l-lg3•log32-lg5=0-(lg2+lg5)=-lg10=-1.
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