Question 178249
Given U = {18. 19. 20, 21, 22, 23, 24, 25, 26, 27, 28, 29}, 
A = {21, 23, 25, 27, 29}, and
B = {26, 27, 28, 29}. 
Find A′ U B′.
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A' = {18, 19, 20, 22, 24, 26, 28}
B' = {18. 19. 20, 21, 22, 23, 24, 25}
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A'U B' = {18. 19. 20, 21, 22, 23, 24, 25, 26, 28}
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Cheers,
Stan H.