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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)’
Select one:
a. {t. v, x}
b.{s, u, w}
c. {r, t, u, V, W, X, Z)
d.{q, s, t, u, V, W, X, Y}

User Jmnas
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1 Answer

3 votes

(AB)' is the complement of AB, or the set of all elements in the universal set U that do not belong to AB.

AB is the intersection of A and B, or the set of all elements common to both A and B.

We have

A = {q, s, u, w, y}

B = {q, s, y, z}

so that

AB = {q, s, y}

Then

(AB)' = {r, t, u, v, w, x, z}

which makes (c) the answer.

User Baruch Even
by
8.3k points

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