摘要:7.在下列数中:有理数是 ,无理数是 .
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在下列数中:-
,1.732,|-
|,1-
,0.643,-(-1)2n(n为正整数),4+
.有理数是
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| 3 |
| 2 |
| 2 |
| 3 | -8 |
1.732,0.643,-(-1)2n(n为正整数),4+
| 3 | -8 |
1.732,0.643,-(-1)2n(n为正整数),4+
;无理数是| 3 | -8 |
-
,|-
|,1-
| 3 |
| 2 |
| 2 |
-
,|-
|,1-
.| 3 |
| 2 |
| 2 |