S 1 2 3 4 5 6 T 2 4 5 7 and R 1 4 5 and S T R - WAEC Mathematics 1993 Question
S = {1, 2, 3, 4, 5, 6}, T = {2,4,5,7} and R = {1,4, 5}, and (S∩T) ∪ R
A
{1, 4, 5}
B
{2, 4, 5}
C
{1, 2, 4, 5}
D
{2, 3, 4, 5}
correct option: c
S = {1, 2, 3, 4, 5, 6}; T = {2, 4, 5, 7}; R = {1, 4, 5}
(S∩T) ∪ R = {2, 4, 5} ∪ {1, 4, 5}
= {1, 2, 4, 5}
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