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ex nr 7 . urgent dau coroana

Ex Nr 7 Urgent Dau Coroana class=

Răspuns :

A={1,0,22/11}
B={-4,1,0,-1/2,22/11}
C={2/3,-1/2,7/3}
pai la multimea N intra toate numerele naturale (1,2,3..etc)
in multimea Z intra fractiile (2,3;3/4)
in multimea Q intra toate numerele. Coroana ? :D