题目内容
化简:(
-
+
)+(
-
)=______.
| AC |
| DP |
| BA |
| CP |
| BD |
(
-
+
)+(
-
)=(
+
+
)-(
+
)=
-
=
,
故答案为:
.
| AC |
| DP |
| BA |
| CP |
| BD |
| BA |
| AC |
| CP |
| BD |
| DP |
| BP |
| BP |
| 0 |
故答案为:
| 0 |
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题目内容
| AC |
| DP |
| BA |
| CP |
| BD |
| AC |
| DP |
| BA |
| CP |
| BD |
| BA |
| AC |
| CP |
| BD |
| DP |
| BP |
| BP |
| 0 |
| 0 |