题目内容
计算:
(1)
×
=
(2)
×
=
(3)
•
=
(4)
•
=
(1)
| 6 |
| 7 |
(2)
| 2 |
| 32 |
(3)
| x2y |
|
(4)
|
| 40 |
(1)原式=
;
(2)原式=
=8;
(3)原式=
;
(3)原式=
=2
.
| 42 |
(2)原式=
| 64 |
(3)原式=
| xy |
(3)原式=
| 8 |
| 2 |
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题目内容
| 6 |
| 7 |
| 2 |
| 32 |
| x2y |
|
|
| 40 |
| 42 |
| 64 |
| xy |
| 8 |
| 2 |