题目内容
计算:(
+
)2012•(
-
)2011=______.
| 6 |
| 5 |
| 6 |
| 5 |
原式=[(
+
)(
-
)]2011•(
+
)
=(6-5)2011•(
+
)
=
+
.
故答案为
+
.
| 6 |
| 5 |
| 6 |
| 5 |
| 6 |
| 5 |
=(6-5)2011•(
| 6 |
| 5 |
=
| 6 |
| 5 |
故答案为
| 6 |
| 5 |
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