题目内容
计算:
(1)
(2)0.0081
+(4-
)2+(
)-
-16-0.75.
(1)
| 2lg2+lg3 | ||||
1+
|
| 1 |
| 4 |
| 3 |
| 4 |
| 8 |
| 4 |
| 3 |
(1)
=
=
=1
(2)0.0081
+ (4-
)2 +(
)-
-16-0.75=0.3+
+
-
=0.55
| 2lg2+lg3 | ||||
1+
|
| lg12 |
| 1+lg0.6+lg2 |
| lg12 |
| lg12 |
(2)0.0081
| 1 |
| 4 |
| 3 |
| 4 |
| 8 |
| 4 |
| 3 |
| 1 |
| 8 |
| 1 |
| 4 |
| 1 |
| 8 |
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