Question

Let U = {q, r, s, t, u, v, w, x, y, z}
A = {q, s, u, w, y}
B = {q, s, y, z}
C = {v, w, x, y, z}.

Determine the following.
A ∪ (B ∩ C)

Answer 1

i think i know this one

Answer 2

\(\cup\) means take things in either one. \(\cap\) means takes things in both

Answer 3

So \(B \cap C\) means get things in both. both have \(y\) and \(z\) so \(B \cap C = \{ y. z\} \)