Question

Help pls
A= x∈N*/X≤1
B= X∈N/2≤X≤3
A∪B,A/B,B/A,B∩A

Answer 1

Răspuns:

A= {-1;+1}

B={2,3,-2,-3}

A U B=multimea vida

A/B= -1, 1

B/A= 2,3,-2,-3

B intersectat cu A= m vida

sper că e ok. spor la treabă!