题目内容
(
-1)(
-1)(
-1)…(
-1)(
-1)=______.
| 1 |
| 1998 |
| 1 |
| 1997 |
| 1 |
| 1996 |
| 1 |
| 1001 |
| 1 |
| 1000 |
原式=-
×
×
×…×
×
=-
=-
.
故答案为:-
.
| 1997 |
| 1998 |
| 1996 |
| 1997 |
| 1995 |
| 1996 |
| 1000 |
| 1001 |
| 999 |
| 1000 |
| 999 |
| 1998 |
| 1 |
| 2 |
故答案为:-
| 1 |
| 2 |
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