题目内容
计算:
①
+|
-2|+(2-π)0
②
+
-
.
①
| 12 |
| 3 |
②
| (-3)2 |
| 72 |
(2
|
①
+|
-2|+(2-π)0
=2
+2-
+1
=3+
;
②
+
-
=3+6
-3+2
=8
.
| 12 |
| 3 |
=2
| 3 |
| 3 |
=3+
| 3 |
②
| (-3)2 |
| 72 |
(2
|
=3+6
| 2 |
| 2 |
=8
| 2 |
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