题目内容
若规定一种新运算为a?b=
+
,如果2?
=-1,那么2001?2002=______.
| 1 |
| ab |
| 1 |
| (a-1)(b+A) |
| 1 |
| 2 |
由2?
=-1,根据题意得:
+
=-1,
解得:A=-1,
则2001?2002=
+
=
-
+
-
=
-
=
.
故答案为:
| 1 |
| 2 |
| 1 | ||
2×
|
| 1 | ||
(2-1)(
|
解得:A=-1,
则2001?2002=
| 1 |
| 2001×2002 |
| 1 |
| 2000×2001 |
| 1 |
| 2001 |
| 1 |
| 2002 |
| 1 |
| 2000 |
| 1 |
| 2001 |
| 1 |
| 2000 |
| 1 |
| 2002 |
| 1 |
| 2002000 |
故答案为:
| 1 |
| 2002000 |
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