题目内容

将下列各数填入相应的集合内.
-7,0.32,
1
3
,0,
8
1
2
3125
,π,0.1010010001…
①有理数集合{                                                …}
②无理数集合{                                                …}
③负实数集合{                                                …}.
3125
=5,
8
=2
2

①有理数集合{-7,0.32,
1
3
,0,
3125
,0.1010010001}
②无理数集合{
8
1
2
,π}
③负实数集合{-7}.
故答案是:-7,0.32,
1
3
,0,
3125
,0.1010010001;
8
1
2
,π;-7.
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