Question

va rog ajutor plss repede​

Answer 1

Răspuns:

A={x€N*|x<5}

B={x€N|3_<x<10}

A={1,2,3,4}

B={3,4,5,6,7,8,9}

AUB={1,2,3,4,5,6,7,8,9}

A^B={3,4}

A-B={1,2}

B-A={5,6,7,8,9}

(A^B)-{1,3,5,7,9}

A^B={3,4}

{3,4}-{1,3,5,7,9}={4}