题目内容
| 3 |
| 5 |
| 4 |
| 7 |
(
+
)-(
-
),
=(
+
)-(
-
),
=
-
,
=
,
=
,
=1
;
答:结果是1
.
| 3 |
| 5 |
| 4 |
| 7 |
| 3 |
| 5 |
| 4 |
| 7 |
=(
| 21 |
| 35 |
| 20 |
| 35 |
| 21 |
| 35 |
| 20 |
| 35 |
=
| 41 |
| 35 |
| 1 |
| 35 |
=
| 40 |
| 35 |
=
| 8 |
| 7 |
=1
| 1 |
| 7 |
答:结果是1
| 1 |
| 7 |
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