Question

va rog la mate ex 4 si 5 va rog

Answer 1

4.

A={1,2,3,4,...,16}

B={1,2,3,4}

A intersectat cu B ={1,2,3,4}

AUB={1,2,3,4,..,16}

A\B={5,6,7,8,...,16}

B\A={O(multimea vida)}