题目内容
| 2 |
| 3 |
| 1 |
| 3 |
| 1 |
| 2 |
(1)
×
=1,所以
和
互为倒数.
(2)
:
=
÷
=
×2=
;
故答案为:
、
.
| 2 |
| 3 |
| 3 |
| 2 |
| 2 |
| 3 |
| 3 |
| 2 |
(2)
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 2 |
| 3 |
故答案为:
| 3 |
| 2 |
| 2 |
| 3 |
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