题目内容
计算:(1)log3
+lg25+lg4+7log72+(-9.8)0;
(2)(0.25)
-[-2×(
)0]2×[(-2)3]
+(
-1)-1-2
.
| 27 |
(2)(0.25)
| 1 |
| 2 |
| 3 |
| 7 |
| 4 |
| 3 |
| 2 |
| 1 |
| 2 |
(1)原式=log33
+lg(25×4)+2+1=
+lg102+3=
+2+3=
,
(2)原式=0.5-(-2)2×(-2)4+
+1-
=-
.
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 13 |
| 2 |
(2)原式=0.5-(-2)2×(-2)4+
| 2 |
| 2 |
| 125 |
| 2 |
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