Question

Scrieti multimea cifrelor din care sunt formaate numerele : 43 257 , 524 123 , 17 230 415 , 425 730

Answer 1

43257⇒{2,3,4,5,7}
524123⇒{1,2,3,4,5}
17230415⇒{0,1,2,3,4,5,7}
425730⇒{0,2,3,4,5,7}