题目内容
计算:20120-3tan30°+(
)-2-|
-2|.
| 1 |
| 3 |
| 3 |
20120-3tan30°+(
)-2-|
-2|
=1-3×
+9-2-
=1-
+9-2-
=8-2
.
故答案为:8-2
.
| 1 |
| 3 |
| 3 |
=1-3×
| ||
| 3 |
| 3 |
=1-
| 3 |
| 3 |
=8-2
| 3 |
故答案为:8-2
| 3 |
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