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Kyongie
a fost răspuns

Urgent va rog pas cu pas

Urgent Va Rog Pas Cu Pas class=

Răspuns :

Xyzoannie

(C-B)uA= {0,1,2,3,4,5,6,7,8,10,11,13,15}

C-B={0,1,2,3,4,5,7,8,10,11,13,15}

{0,1,2,3,4,5,7,8,10,11,13,15}uA={0,1,2,3,4,5,6,7,8,10,11,13,15}

(BnC)uA= {2,4,6,8,9,12,17}

BnC= {6,9,12}

{6,9,12}uA= {2,4,6,8,9,12,17}

Sper ca te-am ajutat :)