题目内容
计算:
(1)
-(π-2)0-(
)-2
(2)(3+2
)(3-2
)-(
-1)2.
(1)
| 12 |
| 1 |
| 3 |
(2)(3+2
| 2 |
| 2 |
| 2 |
(1)原式=2
-1-9
=2
-10;
(2)原式=9-8-(2-2
+1)
=9-8-2+2
-1
=2
-2.
| 3 |
=2
| 3 |
(2)原式=9-8-(2-2
| 2 |
=9-8-2+2
| 2 |
=2
| 2 |
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