题目内容
(1)计算:|-1|-
+(π-3)0+2-2;
(2)化简求值:
÷(a-
),其中a=2011,b=2010.
| 4 |
(2)化简求值:
| a-b |
| a |
| 2ab-b2 |
| a |
(1)原式=1-2+1+
=
;
(2)原式=
•
=
,
当a=2011,b=2010时,原式=
=1.
| 1 |
| 4 |
=
| 1 |
| 4 |
(2)原式=
| a-b |
| a |
| a |
| (a-b)2 |
=
| 1 |
| a-b |
当a=2011,b=2010时,原式=
| 1 |
| 2011-2010 |
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