1.

f: N rarr N is defined asf(n) = {{:(2","n=3",",k in Z),(10-n","n=3k+1",",k in Z),(0","n=3k+2",",k in Z):}then {n in N : f(n) gt 2}=

Answer»

`{3,6,4}`
`{1, 4, 7}`
`{4, 7}`
`{7}`

ANSWER :B


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