Question

What is the the union for the following sets.

X = {0, 10, 100, 1000}

Y = {100, 1000}

X ∪ Y =

Answer 1

X ∪ Y = {0, 10, 100, 1000}

Explanation:

Y is a subset of X, so the union of the two sets is the same as set X:

{0, 10, 100, 1000}