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Fie multimile:A={X∈N*/1<x≤4} si B={X∈N/2≤x≤5}
 a)2∈A
b)5∈B
c)A⊂B
d){2,3,4}⊂B
e?Ф⊂B
f){4,3,2}⊂B
AJUTATI-MA VA ROG!