集合A={n|n∈Z,-3≤n≤3},集合B={y|y=x2-1,x∈A},集合C={(x,y)|y=x2-1,x∈A},用列举法分别写出集合A B C
问题描述：
集合A={n|n∈Z,-3≤n≤3},集合B={y|y=x2-1,x∈A},集合C={(x,y)|y=x2-1,x∈A},用列举法分别写出集合A B C
答
A= {-3,-2,-1,0,1,2,3}
B= {-1,0,3,8}
C= {(0,-1)(1,0)(2,3)(3,8)}