Question

If A = {2, 5} and B = {1, 2, 3, 4, 5}, find A ∪ B.

1) {2, 5}
2) {}
3) {1, 2, 3, 4, 5}
4) {1, 3, 4}

Answer 1

{1,2,3,4,5}

Explanation:

union is the collection of all numbers from set A and set B.in order