Question

If C={1,2,3,4} and D={3,4,5,6,7} then CUD=?

Answer 1

C U D = {1,2,3,4,5,6,7}

Explanation:

The union of two sets X and Y is equal to the set of elements that are present in set X, in set Y, or in both the sets X and Y. This operation can be represented as;X ∪ Y = {a: a ∈ X or a ∈ Y}