题目内容
用“∈”或“”填空.
-3________Z,π________Q,0________N*,1________N,-5.3________R
用符号“”或“∈”填空:
1 N , 1 Z , -3 N , -3 Q
0 N , 0 Z , N , R
用符号“”或“”填空
(1)______, ______, ______
(2)(是个无理数)
(3)________