题目内容
计算:(1)1.10+
-0.5-2+lg25+2lg2;
(2)log3
+lg25+lg4+7log72.
| 3 | 216 |
(2)log3
| |||
| 3 |
(1)1.10+
-0.5-2+lg25+2lg2=1+6-4+2=5
(2)log3
+lg25+lg4+7log72=
-1+2+2=
.
| 3 | 216 |
(2)log3
| |||
| 3 |
| 3 |
| 4 |
| 15 |
| 4 |
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