(1) 能让6整除的有-6,-3,-2,-1,1,2,3,6 即2-x=-6,-3,-2,-1,1,2,3,6得x=8,5,4,3,1,0,-1,-4 集合为{-4,-1,0,1,3,4,5,8}
(2)a=-1,0,1 b=1,2,3 所以a/b=-1,-1/2,-1/3,0,1,1/2,1/3集合为{-1,-1/2,-1/3,0,1,1/2,1/3}
(3)x=1,2,3所以y(x,y)为(1,2),(2,4),(3,6) 集合为{(1,2),(2,4),(3,6)}
(1) 能让6整除的有-6,-3,-2,-1,1,2,3,6 即2-x=-6,-3,-2,-1,1,2,3,6得x=8,5,4,3,1,0,-1,-4 集合为{-4,-1,0,1,3,4,5,8}
(2)a=-1,0,1 b=1,2,3 所以a/b=-1,-1/2,-1/3,0,1,1/2,1/3集合为{-1,-1/2,-1/3,0,1,1/2,1/3}
(3)x=1,2,3所以y(x,y)为(1,2),(2,4),(3,6) 集合为{(1,2),(2,4),(3,6)}