题目内容
计算
(1)
+(-
)
(2)(
+
)(
-
)-(
)0.
(1)
| ||||
|
3 |
(2)(
2 |
6 |
2 |
6 |
1 | ||
|
(1)原式=
-
-
=6-4-
=2-
;
(2)原式=2-6-1
=-5.
36 |
16 |
3 |
=6-4-
3 |
=2-
3 |
(2)原式=2-6-1
=-5.
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题目内容
| ||||
|
3 |
2 |
6 |
2 |
6 |
1 | ||
|
36 |
16 |
3 |
3 |
3 |