P 2 1 3 9 1 2 Q 1 21 2 3 7 and R 5 4 21 2 Find ... - WAEC Mathematics 1991 Question
P={2, 1,3, 9, 1/2}; Q = {1,21/2,3, 7} and R = {5, 4, 21/2}. Find P∪Q∪R
A
(21/2)
B
(1, 9)
C
(1, 2, 3, 4, 5, 6, 7)
D
(5, 4, 21/2)
correct option: e
P = {2,1,3,9,1/2}; Q = {1,21/2,3,7}
R = {5,4,212}
P∪Q∪R = {1/2,1,2,21/2,3,4,5,7,9}
= {1/2,1,2,21/2,3,4,5,7,9}
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