If for a ? N, aN = {ax: x ? N}, then the set 6 N ? 8 N is equal to

1.	If for a ? N, aN = {ax: x ? N}, then the set 6 N ? 8 N is equal to
A.	8N
B.	48N
C.	24N
D.	72N
Answer» C. 24N

Discussion

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