👤

Fie multimile A={x|x cifra para},B={x|x∈N*,x≤5}.Calculati:                                                       A U B,A n B,A-B si B-A  

Răspuns :

A={0,2,4,6,8.....2n}
B={1,2,3,4,5}


A U B={0,1,2,3,4,5,6,8,10,12,14,16...2n}
A n B={2,4}
A-B ={0,6,8,10,12,14,16,18,20,...,2n}
 B-A={1,3,5}

Eu asa stiu  ca vine:(scz daca nu e asa)
A=[0,2,4,6,8]
B={1,2,3,4,5}
A U B=[0,1,2,3,4,5,6,8,10,12,14,16]
A n B=[2,4]
A-B +[0,6,8,10,12,14,16,18,20]
B-A=[1,3,5]