摘要:7.|1+lg0.001|++lg6-lg0.02的值为 . 解析:原式=|1-3|+|lg3-2|+lg300=2+2-lg3+lg3+2=6. 答案:6
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求值:
(1)(
×
)6+(
)
-4×(
)-
-
×80.25-(-2005)0
(2)|1+lg0.001|+
+lg6-lg0.02.
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(1)(
| 3 | 2 |
| 3 |
2
|
| 4 |
| 3 |
| 16 |
| 49 |
| 1 |
| 2 |
| 4 | 2 |
(2)|1+lg0.001|+
lg2
|