Question

Let U = [5, 10, 15, 20, 25, 30, 35, 40] A = [5, 10, 15, 20] B = [25, 30, 35, 40] C = [10, 20, 30, 40]. Find B U C.

Answer 1

The notation is a little confusing because "U" seems to be used two different ways.

But if B U C means "B union C" then the result is the set consisting of all elements that are in B or C.

So B U C = [10, 20, 25, ... ]

Get it? Need more?

Answer 2

Thank you