题目内容
计算下列各式的值:
(1)(2
)
-(-9.6)0-(3
)-
+(1.5)-2; (2)
.
(1)(2
| 1 |
| 4 |
| 1 |
| 2 |
| 3 |
| 8 |
| 2 |
| 3 |
| 2lg2+lg3 | ||||
1+
|
(1)原式=
-1-
+
=
;
(2)原式=
=
=
=
=1.
| 3 |
| 2 |
| 4 |
| 9 |
| 4 |
| 9 |
| 1 |
| 2 |
(2)原式=
| lg4+lg3 | |||||
1+lg
|
| lg12 |
| 1+lg0.6+lg2 |
| lg12 |
| lg10+lg0.6+lg2 |
| lg12 |
| lg12 |
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