Question

Examples of intersections and union in math

Answer 1

inversection in maths is the common part between both for example:A (1,2,3);B (3,4,5)
in this intersection of Aand B is (3)
and the union is combination of both parts for example:A (1,2,3)and B (4,5,6)in this union of A and B is (1,2,3,4,5,6)