Question

Let U = {1, 2, 3, 4, 5, 6, 7, 8}, A = {4, 6, 8}, B = {3, 4, 7, 10}, and C = {1, 3, 7}. Find the following. (Enter your answers as a comma-separated list.)

A ∪ B

Answer 1

A U B = {3,4,6,7,8,10}

Explanation:

Greetings !

Little explanation about union 'U'

The union of two sets is a set containing all elements that are in A or in B (possibly both). For example, {1,2}∪{2,3}={1,2,3}. Thus, we can write x∈(A∪B) if and only if (x∈A) or (x∈B). Note that A∪B=B∪A.

Hope it helps!!