WAEC - Mathematics (1993 - No. 1)
S = {1, 2, 3, 4, 5, 6}, T = {2,4,5,7} and R = {1,4, 5}, and (S∩T) ∪ R
{1, 4, 5}
{2, 4, 5}
{1, 2, 4, 5}
{2, 3, 4, 5}
{1, 2, 3, 4, 5}
Explication
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}