题目内容
(1)计算:
-(
-1)0+|-1|
(2)化简:
÷
-
.
| 8 |
| 3 |
(2)化简:
| 6 |
| m2-9 |
| 2 |
| m-3 |
| m |
| m+3 |
(1)原式=2
-1+1
=2
;
(2)原式=
×
-
=
.
| 2 |
=2
| 2 |
(2)原式=
| 6 |
| (m+3)(m-3) |
| m-3 |
| 2 |
| m |
| m+3 |
=
| 3-m |
| m+3 |
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